There were 32 unique 3-year teams selected in this theme. Of those, 21 were selected only once. Here is the complete breakdown... (sorted by count, then by season)
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Team Selection	….	Count
2020-22 Los Angeles Dodgers		14
1968-70 Baltimore Orioles		6
2019-21 Los Angeles Dodgers		6
1942-44 St. Louis Cardinals		5
1996-98 Atlanta Braves		5
1997-99 Atlanta Braves		5
1902-04 Cleveland Naps		2
1909-11 Chicago Cubs		2
1909-11 Philadelphia Athletics		2
1969-71 Baltimore Orioles		2
1992-94 Atlanta Braves		2
1892-94 Philadelphia Phillies		1
1897-99 Baltimore Orioles		1
1908-10 Chicago Cubs		1
1910-12 Chicago Cubs		1
1915-17 Boston Red Sox		1
1926-28 New York Yankees		1
1927-29 New York Giants		1
1929-31 Philadelphia Athletics		1
1937-39 New York Yankees		1
1941-43 New York Yankees		1
1941-43 St. Louis Cardinals		1
1942-44 New York Yankees		1
1952-54 Cleveland Indians		1
1962-64 New York Yankees		1
1964-66 Los Angeles Dodgers		1
1980-82 Houston Astros		1
1985-87 St. Louis Cardinals		1
1988-90 Oakland Athletics		1
1995-97 Atlanta Braves		1
1997-99 New York Yankees		1
2014-16 Los Angeles Dodgers		1

Here are the teams selected more than once, by owner...
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Team Selection	…	Owner	….....	Team Selection	…	Owner
2020-22 Los Angeles Dodgers		_JJP_		1942-44 St. Louis Cardinals		big_dowg
2020-22 Los Angeles Dodgers		Bansberg		1942-44 St. Louis Cardinals		emanes10
2020-22 Los Angeles Dodgers		chargingryno		1942-44 St. Louis Cardinals		happyhours
2020-22 Los Angeles Dodgers		DCNats4000		1942-44 St. Louis Cardinals		jbohrman
2020-22 Los Angeles Dodgers		DJTaylor		1942-44 St. Louis Cardinals		ozomatli
2020-22 Los Angeles Dodgers		duhbigcat		.
2020-22 Los Angeles Dodgers		hebdomad		1996-98 Atlanta Braves		AAartist3
2020-22 Los Angeles Dodgers		Jdh34		1996-98 Atlanta Braves		cubbies84
2020-22 Los Angeles Dodgers		just4me		1996-98 Atlanta Braves		mllama54
2020-22 Los Angeles Dodgers		justinlee_24		1996-98 Atlanta Braves		Relkcirts
2020-22 Los Angeles Dodgers		ledfoot		1996-98 Atlanta Braves		toddcommish
2020-22 Los Angeles Dodgers		milest		.
2020-22 Los Angeles Dodgers		mjkrunner		1997-99 Atlanta Braves		3dayrotation
2020-22 Los Angeles Dodgers		PrimetimeTW		1997-99 Atlanta Braves		barracuda3
.				1997-99 Atlanta Braves		buddhagamer
1968-70 Baltimore Orioles		bullet6464		1997-99 Atlanta Braves		firesalt
1968-70 Baltimore Orioles		jfranco77		1997-99 Atlanta Braves		mattedesa
1968-70 Baltimore Orioles		rbow923		.
1968-70 Baltimore Orioles		schwarze		1902-04 Cleveland Naps		beauchamp
1968-70 Baltimore Orioles		toysboys		1902-04 Cleveland Naps		calhoop
1968-70 Baltimore Orioles		trd3		.
.				1909-11 Chicago Cubs		contrarian23
2019-21 Los Angeles Dodgers		dvorr80		1909-11 Chicago Cubs		ronthegenius
2019-21 Los Angeles Dodgers		Jtpsops		.
2019-21 Los Angeles Dodgers		markeking		1909-11 Philadelphia Athletics		newarkwilder
2019-21 Los Angeles Dodgers		MJDSupporter		1909-11 Philadelphia Athletics		redcped
2019-21 Los Angeles Dodgers		sford		.
2019-21 Los Angeles Dodgers		sweil		1969-71 Baltimore Orioles		dirtbag13
				1969-71 Baltimore Orioles		redsfive
				.
				1992-94 Atlanta Braves		pinstripes5
				1992-94 Atlanta Braves		wstevens07

Here is a complete list, sorted by owner...
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Owner________	Team Selection	…	Owner________	Team Selection
_JJP_	2020-22 Los Angeles Dodgers		jfranco77	1968-70 Baltimore Orioles
3dayrotation	1997-99 Atlanta Braves		Jtpsops	2019-21 Los Angeles Dodgers
AAartist3	1996-98 Atlanta Braves		just4me	2020-22 Los Angeles Dodgers
Bansberg	2020-22 Los Angeles Dodgers		justinlee_24	2020-22 Los Angeles Dodgers
barracuda3	1997-99 Atlanta Braves		ledfoot	2020-22 Los Angeles Dodgers
beauchamp	1902-04 Cleveland Naps		magicdreamer	1910-12 Chicago Cubs
bheid408	1941-43 New York Yankees		markeking	2019-21 Los Angeles Dodgers
big_dowg	1942-44 St. Louis Cardinals		mattedesa	1997-99 Atlanta Braves
buddhagamer	1997-99 Atlanta Braves		mensu1954	1980-82 Houston Astros
bullet6464	1968-70 Baltimore Orioles		milest	2020-22 Los Angeles Dodgers
calhoop	1902-04 Cleveland Naps		MJDSupporter	2019-21 Los Angeles Dodgers
CarrDoor	1892-94 Philadelphia Phillies		mjkrunner	2020-22 Los Angeles Dodgers
ceno1515	2014-16 Los Angeles Dodgers		mllama54	1996-98 Atlanta Braves
chargingryno	2020-22 Los Angeles Dodgers		newarkwilder	1909-11 Philadelphia Athletics
chewy3344	1995-97 Atlanta Braves		oldtimer59	1937-39 New York Yankees
contrarian23	1909-11 Chicago Cubs		ozomatli	1942-44 St. Louis Cardinals
cubbies84	1996-98 Atlanta Braves		pinstripes5	1992-94 Atlanta Braves
d_rock97	1897-99 Baltimore Orioles		PrimetimeTW	2020-22 Los Angeles Dodgers
DarthDurron	1908-10 Chicago Cubs		pumped	1952-54 Cleveland Indians
DCNats4000	2020-22 Los Angeles Dodgers		Qhadow123	1941-43 St. Louis Cardinals
dirtbag13	1969-71 Baltimore Orioles		rbow923	1968-70 Baltimore Orioles
discodemo	1942-44 New York Yankees		RebJebb	1964-66 Los Angeles Dodgers
DJTaylor	2020-22 Los Angeles Dodgers		redcped	1909-11 Philadelphia Athletics
donaldjtrump	1997-99 New York Yankees		redsfive	1969-71 Baltimore Orioles
duhbigcat	2020-22 Los Angeles Dodgers		Relkcirts	1996-98 Atlanta Braves
dvorr80	2019-21 Los Angeles Dodgers		Ribbentrop	1926-28 New York Yankees
emanes10	1942-44 St. Louis Cardinals		ronthegenius	1909-11 Chicago Cubs
ff09	1988-90 Oakland Athletics		SAKABAKBRG	1915-17 Boston Red Sox
firesalt	1997-99 Atlanta Braves		schwarze	1968-70 Baltimore Orioles
franklynne	1962-64 New York Yankees		sford	2019-21 Los Angeles Dodgers
garmansouth	1929-31 Philadelphia Athletics		sweil	2019-21 Los Angeles Dodgers
gworear	1927-29 New York Giants		toddcommish	1996-98 Atlanta Braves
happyhours	1942-44 St. Louis Cardinals		toysboys	1968-70 Baltimore Orioles
hebdomad	2020-22 Los Angeles Dodgers		trd3	1968-70 Baltimore Orioles
jbohrman	1942-44 St. Louis Cardinals		tridentric	1985-87 St. Louis Cardinals
Jdh34	2020-22 Los Angeles Dodgers		wstevens07	1992-94 Atlanta Braves

There are way fewer deadball teams in this league (compared to the 80M league)... Only 11. It's a lot tougher when you only have 4-6 usable pitchers.
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Team Selection	….	Count
1892-94 Philadelphia Phillies		1
1897-99 Baltimore Orioles		1
1902-04 Cleveland Naps		2
1908-10 Chicago Cubs		1
1909-11 Chicago Cubs		2
1909-11 Philadelphia Athletics		2
1910-12 Chicago Cubs		1
1915-17 Boston Red Sox		1

It's interesting that there are three instances of overlapping 3-year teams selected more than once...

2019-21 Dodgers (selected 6 times) and 2020-22 Dodgers (14 times) --> 20 total teams
1996-98 Braves (5 times) and 1997-99 Braves (5 times) --> 10 total teams
1968-70 Orioles (6 times) and 1969-71 Orioles (2 times) --> 8 total teams

You can also add...
1942-44 Cardinals (5 times) and 1941-43 Cardinals (1 time) --> 6 total teams
1908-10 Cubs (1 time) and 1909-11 Cubs (2 times) and 1910-12 Cubs (1 time) --> 4 total teams

Almost went with the 1901-1903 Pirates and 1919-1921 Giants and am surprised neither was chosen at all. But agreed about the limited number of pitchers making deadball teams slightly riskier choices. The bigger problem with them was that finding one that had both good XBH and good pitching

I tried over and over with the 1886-88 Wolverines and could never fit it under 101m with the limited choices involved but they would have been awesome. I finally gave up on them and built good 1942-44 Yankee and 42-44 Cardinal teams I liked. In the end, though, I went with the 09-11 Cubs which I figured would be popular. The very first roster submitted in my league that I checked was contrarian23’s identical 09-11 Cubs. I figured they would be the first two of many, but it turned out the next 70 entries were different (although a little Cub overlap as schwarze indicated)

Posted by ronthegenius on 6/26/2025 11:12:00 AM (view original):
I tried over and over with the 1886-88 Wolverines and could never fit it under 101m with the limited choices involved but they would have been awesome. I finally gave up on them and built good 1942-44 Yankee and 42-44 Cardinal teams I liked. In the end, though, I went with the 09-11 Cubs which I figured would be popular. The very first roster submitted in my league that I checked was contrarian23’s identical 09-11 Cubs. I figured they would be the first two of many, but it turned out the next 70 entries were different (although a little Cub overlap as schwarze indicated)

I tried the same with the Wolverines. Couldn't make the roster fit under the cap.

I tried combinations of the 05-09 Cubs but could only ID 24 eligible players, so ended up sticking with my first build, the 41-43 Cardinals.

Posted by ronthegenius on 6/26/2025 11:12:00 AM (view original):
I tried over and over with the 1886-88 Wolverines and could never fit it under 101m with the limited choices involved but they would have been awesome. I finally gave up on them and built good 1942-44 Yankee and 42-44 Cardinal teams I liked. In the end, though, I went with the 09-11 Cubs which I figured would be popular. The very first roster submitted in my league that I checked was contrarian23’s identical 09-11 Cubs. I figured they would be the first two of many, but it turned out the next 70 entries were different (although a little Cub overlap as schwarze indicated)

This was me with the Browns. Couldn’t resist a Caruthers, Foutz, Tip O’Neill outfield with Nat Hudson and Silver King in the rotation. Even with all scrubs, couldn’t fit it under the cap.

Posted by d_rock97 on 6/26/2025 3:40:00 PM (view original):

Posted by ronthegenius on 6/26/2025 11:12:00 AM (view original):
I tried over and over with the 1886-88 Wolverines and could never fit it under 101m with the limited choices involved but they would have been awesome. I finally gave up on them and built good 1942-44 Yankee and 42-44 Cardinal teams I liked. In the end, though, I went with the 09-11 Cubs which I figured would be popular. The very first roster submitted in my league that I checked was contrarian23’s identical 09-11 Cubs. I figured they would be the first two of many, but it turned out the next 70 entries were different (although a little Cub overlap as schwarze indicated)

This was me with the Browns. Couldn’t resist a Caruthers, Foutz, Tip O’Neill outfield with Nat Hudson and Silver King in the rotation. Even with all scrubs, couldn’t fit it under the cap.

This… I tried to make this work so hard… King just tipped too much on a single season salary and I couldn’t get the $25/$25/$25 split to work