MS
Michael Sullivan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Marion, Indiana
Our Model Tree links this Michael Sullivan across the 1910, 1920 and 1930 US Censuses in Marion, Indiana (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 6-person household.
Age 56
b. ~1874
Male
Head
Born: Indiana
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Marion, Indiana |
| Surname | Sullivan |
| Given Name | Michael D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 37 |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | Machinist |
| Industry | Railroad shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 7.00 |
| Radio Set | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Machinist |
| Township / Ward | Indianapolis City |
| Est. Birth Year | ~1874 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Michael | Age | Birth yr |
|---|---|---|---|---|
| Michael Sullivan | Head | — | 56 | ~1874 |
| Alyda Sullivan | Other | — | 36 | ~1894 |
| John Sullivan | Son | — | 15 | ~1915 |
| Gerald Sullivan | Son | — | 7 | ~1923 |
| Paul Sullivan | Son | — | 13 | ~1917 |
| James Sullivan | Son | — | 17 | ~1913 |
Census Appearances
1910
Marion, Indiana
Head, age 35
Marion, Indiana · implied b. ~1875 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Michael |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Machinist |
| Industry | Rubber Tire Co |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Marion, Indiana
Head, age 46
Marion, Indiana · implied b. ~1874 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Michael |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Paper Hanger |
| Industry | Wall Paper Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Head, age 56
Marion, Indiana · implied b. ~1874 — 6 household members
| Surname | Sullivan |
| Given Name | Michael D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 37 |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Irish Free State |
| Occupation | Machinist |
| Industry | Railroad shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 7.00 |
| Radio Set | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Michael Sullivan across 3 US Census years (1910, 1920 and 1930) in Marion, Indiana, using XGBoost record linkage.
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This person
Anchor record
Michael Sullivan
Head · 1930 · age 56 · b. ~1874 · Indiana
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Marion, Indiana
Open full size
1930 US Federal Census — Marion, Indiana
Page Contents
50 people indexed on this census page (ia:1930:indianacensus00reel612rs:0191)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rosemary Christman | 12 | daughter | None | Indiana |
| 2 | Joan Christman | 4 | daughter | None | Indiana |
| 3 | Otto W. Oberholt | 39 | Head | Freeman | Indiana |
| 4 | Anna M. Oberholt | 45 | sister-H | None | Indiana |
| 5 | Michael D. Sullivan THIS PERSON | 56 | Head | Machinist | Indiana |
| 6 | Alyda Sullivan | 36 | wife-H | Calenderer | Ohio |
| 7 | James Sullivan | 17 | son | None | Indiana |
| 8 | John Sullivan | 15 | son | None | Indiana |
| 9 | Paul Sullivan | 13 | son | None | Indiana |
| 10 | Gerald Sullivan | 7 | son | None | Indiana |
| 11 | Lou Schaefer | 60 | Head | None | West Virginia |
| 12 | Niels Jensen | 37 | Head | Stone Bricklayer | Denmark |
| 13 | Maria Jensen | 26 | wife-H | None | Denmark |
| 14 | John W. Jensen | 3 | son | None | Illinois |
| 15 | Edris Fleming | 23 | Head | Salesman | Kentucky |
| 16 | Irene Fleming | 26 | wife-H | None | Indiana |
| 17 | Effie Brown | 49 | Mother-in-law | None | Indiana |
| 18 | Leo Donlan | 33 | Head | None | Indiana |
| 19 | Dorothy Donlan | 11 | daughter | None | Indiana |
| 20 | Edward Donlan | 9 | son | None | Indiana |
| 21 | Hellen Donlan | 8 | daughter | None | Indiana |
| 22 | Thomas Donlan | 4 | son | None | Indiana |
| 23 | Katherine Donlan | 3 | daughter | None | Indiana |
| 24 | George D. Wohlhieter | 37 | Head | Engineer | Pennsylvania |
| 25 | Stella L. Wohlhieter | 28 | wife-H | None | Indiana |
| 26 | Dorothy Wohlhieter | 7 | daughter | None | Indiana |
| 27 | George Wohlhieter | 4 | son | None | Indiana |
| 28 | Joseph P. Wohlhieter | 2 | son | None | Indiana |
| 29 | Joseph P. Pfeiffer | 68 | father-in-law | Salesman | Indiana |
| 30 | Josephine Pfeiffer | 68 | mother-in-law | None | Indiana |
| 31 | Nicholas Masterly | 38 | Head | Repairman | Indiana |
| 32 | Josephine Masterly | 36 | wife-H | None | Indiana |
| 33 | Charles Masterly | 8 | son | None | Indiana |
| 34 | Donald Masterly | 6 | son | None | Indiana |
| 35 | Hellen J. Masterly | 5 | daughter | None | Indiana |
| 36 | Jesse H. Martin | 66 | Head | Blacksmith | Indiana |
| 37 | Annie Martin | 60 | wife-H | None | Indiana |
| 38 | Sage, Gertrude Martin | 33 | daughter | None | Indiana |
| 39 | James E. Martin | 33 | son-in-law | Yardmaster | Indiana |
| 40 | Margaret G. Clark | 50 | sister-in-law | Clerical Work | Indiana |
| 41 | Charles Clemens | 53 | Head | Salesman | Indiana |
| 42 | Martin Clemens | 28 | son | Salesman | Indiana |
| 43 | Mildred Clemens | 22 | daughter | None | Indiana |
| 44 | Ralph Clemens | 19 | son | Salesman | Indiana |
| 45 | James Clemens | 17 | son | None | Indiana |
| 46 | Charles Clemens | 14 | son | None | Indiana |
| 47 | Edward Glenn | 38 | Head | City Detective | Indiana |
| 48 | Ruth E. Glenn | 34 | wife-H | None | Illinois |
| 49 | Edward C. Glenn | 3 | son | None | Indiana |
| 50 | Ralph Gall | 45 | Head | Labor | Indiana |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)