TS
Thomas Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cuyahoga-County, Ohio
Our Model Tree links this Thomas Sullivan across the 1920, 1930 and 1940 US Censuses in Cuyahoga-County, Ohio (XGBoost, ~Confirmed), with identified parents Matilda & Michael — first a son (b.~1912), then head of a 7-person household.
Age 28
b. ~1912
Male
Son
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cuyahoga-County, Ohio |
| Surname | Sullivan |
| Given Name | Thomas M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland city |
| 1935 Residence (County) | Cuyahoga |
| Additional Details | |
| Occupation | Engineer |
| Industry | Oxygen & Hydrogen Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 194 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Engineer |
| Township / Ward | Cleveland City |
| Est. Birth Year | ~1912 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Michael Sullivan | Head | — | 61 | ~1879 |
| Agnes Sullivan | Other | — | 28 | ~1912 |
| Richard Sullivan | Other | — | 4 | ~1936 |
| Patrick Sullivan | Other | — | ~1940 | |
| Mary Sullivan | Other | — | 2 | ~1938 |
| Thomas Sullivan | Son | — | 28 | ~1912 |
| Mathilda Sullivan | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Cuyahoga, Ohio
Son, age 8
Cuyahoga, Ohio · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Son, age 18
Cuyahoga, Ohio · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Assembler |
| Industry | Generators |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Cuyahoga-County, Ohio
Son, age 28
Cuyahoga-County, Ohio · implied b. ~1912 — 7 household members
| Surname | Sullivan |
| Given Name | Thomas M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Cleveland city |
| 1935 Residence (County) | Cuyahoga |
| Occupation | Engineer |
| Industry | Oxygen & Hydrogen Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 194 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Thomas Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Matilda Sullivan (~0.92 confidence) and father Michael Sullivan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Matilda Sullivan
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
Michael Sullivan
b. ~1879
Source father
● Household
· direct · ~0.92
This person
Anchor record
Thomas Sullivan
Son · 1940 · age 28 · b. ~1912 · Ohio
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cuyahoga-County, Ohio
Open full size
1940 US Federal Census — Cuyahoga-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03236-00058)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mildred Bonté | 47 | Daughter | Receptionist | Ohio |
| 42 | Janice R. Bonté | 23 | Daughter | Bookkeeper | Ohio |
| 43 | Samuel Margolis | 47 | Head | Mail Carrier | New York |
| 44 | Kate F. Margolis | 44 | Wife | — | Latvia |
| 45 | Carl E. Lucas | 45 | Head | Tool & Die Maker | Ohio |
| 46 | Hazel M. Lucas | 43 | Wife | — | Ohio |
| 47 | Lenna C. Lucas | 19 | Son | — | Ohio |
| 48 | Walter A. Thompson | 64 | Head | Salesman | Kentucky |
| 49 | Zula E. Thompson | 56 | Wife | — | Kentucky |
| 50 | Jack F. Herschell | 40 | Head | Data Clerk | New York |
| 51 | Sylvia M. Herschell | 35 | Wife | — | Ohio |
| 52 | Maida J. Herschell | 16 | Daughter | — | Ohio |
| 53 | Jack F. Jr. Herschell | 14 | Son | Newsboy | Ohio |
| 54 | Stephen J. Brown | 38 | Head | Press Operator | Pennsylvania |
| 55 | Gladys L. Brown | 36 | Wife | — | Ohio |
| 56 | Shirley A. Brown | 7 | Daughter | — | Ohio |
| 57 | Wilbur E. Byrne | 38 | Head | Foreman | Illinois |
| 58 | Elizabeth H. Byrne | 35 | Wife | — | Kentucky |
| 59 | Wilbur E. Jr. Byrne | 11 | Son | — | Ohio |
| 60 | Betty Lee Byrne | 7 | Daughter | — | Ohio |
| 61 | David G. Byrne | 6 | Son | — | Ohio |
| 62 | Barbara J. Byrne | 1 | Daughter | — | Ohio |
| 63 | William E. Sisson | 78 | Head | Machinist Helper | Ohio |
| 64 | Lyda E. Sisson | 76 | Wife | — | Florida |
| 65 | Roger E. Sisson | 5 | Son | — | Ohio |
| 66 | Harold A. Behnke | 33 | Brother-in-law | Truck Driver | Ohio |
| 67 | Ruth A. Behnke | 33 | Sister | — | Ohio |
| 68 | Karen L. Behnke | 5 | Niece | — | Ohio |
| 69 | Ella D. Sisson | 64 | Mother | — | Pennsylvania |
| 70 | Michael Sullivan | 61 | Head | — | Pennsylvania |
| 71 | Mathilda Sullivan | 63 | Wife | Seamstress | Pennsylvania |
| 72 | Thomas M. Sullivan THIS PERSON | 28 | Son | Engineer | Ohio |
| 73 | Agnes J. Sullivan | 28 | Daughter-in-law | — | Pennsylvania |
| 74 | Richard T. Sullivan | 4 | Grandson | — | Ohio |
| 75 | Mary A. Sullivan | 2 | Granddaughter | — | Ohio |
| 76 | Patrick J. Sullivan | 0 | Grandson | — | Ohio |
| 77 | Sidney J. Hall | 45 | Head | Electrician | Ohio |
| 78 | Mildred K. Hall | 41 | Wife | — | Ohio |
| 79 | Warren W. Hall | 19 | Son | Payroll Clerk | Ohio |
| 80 | Carol L. Hall | 13 | Son | — | Ohio |
Related Census Records
Pedigree Summary
Thomas
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)