First positive recorded appearance: 2019 · Cedar Rapids, IA, USA
Source record
Ben Ford
1
First positive recorded appearance: 1998 · Cedar Rapids, IA, USA
Source record
Bill Hoffer
1
First positive recorded appearance: 1895 · Cedar Rapids, IA, USA
Source record
Bruce Kimm
1
First positive recorded appearance: 1976 · Cedar Rapids, IA, USA
Source record
Cal Eldred
1
First positive recorded appearance: 1991 · Cedar Rapids, IA, USA
Source record
Cy Slapnicka
1
First positive recorded appearance: 1911 · Cedar Rapids, IA, USA
Source record
Dick Rozek
1
First positive recorded appearance: 1950 · Cedar Rapids, IA, USA
Source record
Earl Whitehill
1
First positive recorded appearance: 1923 · Cedar Rapids, IA, USA
Source record
Greg Thayer
1
First positive recorded appearance: 1978 · Cedar Rapids, IA, USA
Source record
John Wathan
1
First positive recorded appearance: 1976 · Cedar Rapids, IA, USA
Source record
Mike Boddicker
1
First positive recorded appearance: 1980 · Cedar Rapids, IA, USA
Source record
Mitch Keller
1
First positive recorded appearance: 2019 · Cedar Rapids, IA, USA
Source record
Ryan Sweeney
1
First positive recorded appearance: 2006 · Cedar Rapids, IA, USA
Source record
Scott Schebler
1
First positive recorded appearance: 2015 · Cedar Rapids, IA, USA
Source record
Shawn Sedlacek
1
First positive recorded appearance: 2002 · Cedar Rapids, IA, USA
Source record
Wes Obermueller
1
First positive recorded appearance: 2002 · Cedar Rapids, IA, USA
Source record
SOURCES & DEFINITIONS
Know what the map counts.
Source: SABR / Sean Lahman Baseball Database, credited to Sean Lahman and the database contributors (CC BY-SA 3.0). The archived release covers 1871–2025, including the recognized major leagues and supported Negro League records in its 19 league codes. Earlier and Negro League records have documented gaps; a missing record is not proof that a player or team did not exist. No other professional leagues have been inferred.
24,011 unique players have positive recorded game appearances. Debut cohorts use the first positive appearance year in this database; active cohorts count a player once if any positive appearance falls inside the range. Team changes never multiply that player. Birthplaces describe source birth location, not citizenship. Historical birth countries retain their source identity. 23,078 players have a birth-country entry; unknowns stay visible.
HomeGames determines season-specific venues, with the most recorded home games identifying the primary park. Franchise names and locations follow each historical team season. World Series titles are joined to the winning team’s primary home city that season, including the source’s historical and Negro League World Series records. They are never reassigned to a franchise’s present city.
339 of 345 parks have city-level coordinates. These locate cities, not exact stadium sites. U.S. place coordinates come from the Census 2025 Gazetteer (public domain); international locations use unique GeoNames city matches (CC BY 4.0, attribution GeoNames). Ambiguous matches remain unlocated. City profiles require at least five source players and a reviewed city match; smaller or unlocated groups open the filtered origins atlas.
lahman-readme2025.txt · SABR / Sean Lahman · CC BY-SA 3.0 · retrieved 2026-10-03 · 47,982 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 8f3d8f12b638887e4d182561a668e8103e11fbe1483019cae6d12a4c67cc3aab
lahman-People.csv · SABR / Sean Lahman · CC BY-SA 3.0 · retrieved 2026-10-03 · 3,223,128 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 9ee97110fc88b2c4ad72684577d696875035049e74a45cb93238458df8563c58
lahman-Parks.csv · SABR / Sean Lahman · CC BY-SA 3.0 · retrieved 2026-10-03 · 22,638 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 788dfee98c41e80d95e7bbbe1a90a8be2aa6d958701433ab896f9747384f992b
lahman-Teams.csv · SABR / Sean Lahman · CC BY-SA 3.0 · retrieved 2026-10-03 · 701,384 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 0e7afdd8b837d0edaca770a28817eec6613bd8255979c1be6e3f5827f4b88fd6
lahman-Appearances.csv · SABR / Sean Lahman · CC BY-SA 3.0 · retrieved 2026-10-03 · 7,833,413 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 4aa1883276a86b9b8ceaa08b3d030044d187766fb758fc973ec12d3a24f6fe08
lahman-HomeGames.csv · SABR / Sean Lahman · CC BY-SA 3.0 · retrieved 2026-10-03 · 178,043 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 40b73165b9b38c55ccedab05841982ec8eaa5316b61a79adab3ff5ae13d264c3
lahman-TeamsFranchises.csv · SABR / Sean Lahman · CC BY-SA 3.0 · retrieved 2026-10-03 · 5,610 uncompressed bytes. Published source · Archived input (gzip) SHA-256: fc58735a8f767f11c27bccbbee38ea850a00e27c0216fb2a60cc4185a99bf398
lahman-SeriesPost.csv · SABR / Sean Lahman · CC BY-SA 3.0 · retrieved 2026-10-03 · 13,628 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 507918cbb9dea12fd353b2a68a36e6ad481f8bcd58e51698cf3889b78d52254a
census-places-2025.zip · U.S. Census Bureau · U.S. Census federal data · retrieved 2026-10-03 · 1,214,053 uncompressed bytes. Published source · Archived input (gzip) SHA-256: 49644173a453469d9bd77fb7a493b027f87567e209edaf2078aac7543ac2ee29
geonames-cities1000.zip · GeoNames · CC BY 4.0 · retrieved 2026-10-03 · 11,053,713 uncompressed bytes. Published source · Archived input (gzip) SHA-256: bd324b6b115b55f6ac5294c7fab0e9b73af7b2ca085436344a2834bf1d4300fe
