TM
Thomas Mcnamara — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Erie-County, New York
Our Model Tree links this Thomas Mcnamara across the 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 13-person household.
Age 11
b. ~1929
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, New York |
| Surname | McNamara |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Cattaraugus |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Buffalo |
| Est. Birth Year | ~1929 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Irene Galen | Other | — | 24 | ~1916 |
| Patrick Mcnamara | Son | — | ~1940 | |
| Robert Mcnamara | Son | — | 6 | ~1934 |
| Eugene Mcnamara | Son | — | 5 | ~1935 |
| Catherine Mcnamara | Spouse | — | 37 | ~1903 |
| Thomas Mcnamara | Son | — | 11 | ~1929 |
| Leo Mcnamara | Son | — | ~1940 | |
| Roseann Mcnamara | Daughter | — | 8 | ~1932 |
| Margaret Mcnamara | Daughter | — | 3 | ~1937 |
| Edward Mcnamara | Son | — | 7 | ~1933 |
| John Mcnamara | Head | — | 37 | ~1903 |
| Norman Mcnamara | Son | — | 4 | ~1936 |
| Patricia Mcnamara | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Erie, New …
Other, age 1
Erie, New York · implied b. ~1929 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | Thomas C. |
| Relationship to Head | Inmate |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Unknown US |
| Mother's Birthplace | Ohio |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Erie-County, New …
Son, age 11
Erie-County, New York · implied b. ~1929 — 13 household members
| Surname | McNamara |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | Cattaraugus |
| Highest Grade | No 4 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Mcnamara across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Mcnamara
Son · 1940 · age 11 · b. ~1929 · New York
★ You are viewing this record
Sibling
Margaret Mcnamara
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roseann Mcnamara
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norman Mcnamara
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Mcnamara
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Mcnamara
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mcnamara
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Mcnamara
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Mcnamara
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mcnamara
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Erie-County, New York
Open full size
1940 US Federal Census — Erie-County, New York
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02823-00661)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elmer Schermerl | 5 | Son | — | New York |
| 2 | Dostal Schermerl | 52 | Lodger | Mechanic | New York |
| 3 | Irene Mockler | 49 | Head | — | New York |
| 4 | Jane (Ab) Mockler | 19 | Daughter | — | New York |
| 5 | Margaret Mockler | 17 | Daughter | — | New York |
| 6 | Ann Mockler | 14 | Daughter | — | New York |
| 7 | John J. Mockler | 47 | Brother | Assistant Treasurer | New York |
| 8 | Daniel M. Mockler | 44 | Brother | Asst. Claims Auditor | New York |
| 10 | Frank Neil | 30 | Head | — | New York |
| 11 | Henrietta Neil | 29 | Wife | Waitress | New York |
| 12 | Barbara Neil | 3 | Daughter | — | New York |
| 13 | Jean Neil | 5 | Daughter | — | New York |
| 14 | Attilia Neil | 62 | Mother | — | New York |
| 15 | Mae D. O'Brien | 49 | Head | — | New York |
| 16 | Ben Irving | 49 | Lodger | Salesman | Illinois |
| 17 | Leo Memmelsdorf | 25 | Head | Machine Operator | New York |
| 18 | Betty Memmelsdorf | 18 | Wife | — | New York |
| 19 | Clyde Scott | 27 | Head | Cutter | Pennsylvania |
| 20 | Theda Scott | 23 | Wife | — | Pennsylvania |
| 21 | Amber Lou Scott | 3 | Daughter | — | Pennsylvania |
| 22 | John Mcnamara | 37 | Head | File Clerk | New York |
| 23 | Catherine Mcnamara | 37 | Wife | File Clerk | New York |
| 24 | Patricia Mcnamara | 13 | Daughter | — | New York |
| 25 | Thomas Mcnamara THIS PERSON | 11 | Son | — | New York |
| 26 | Roseann Mcnamara | 8 | Daughter | — | New York |
| 27 | Edward Mcnamara | 7 | Son | — | New York |
| 28 | Robert Mcnamara | 6 | Son | — | New York |
| 29 | Eugene Mcnamara | 5 | Son | — | New York |
| 30 | Norman Mcnamara | 4 | Son | — | New York |
| 31 | Margaret Mcnamara | 3 | Daughter | — | New York |
| 32 | Patrick Mcnamara | 0 | Son | — | New York |
| 33 | Leo Mcnamara | 0 | Son | — | New York |
| 34 | Irene Galen | 24 | Servant | Housekeeper | New York |
| 35 | John Casey | 56 | Head | Laborer | Ireland |
| 36 | Julia Casey | 54 | Wife | — | Ireland |
| 37 | John (Ab) Casey | 21 | Son | — | New York |
| 38 | Joan Casey | 19 | Daughter | Stenographer | New York |
| 39 | Wm. Lockwood | 62 | Head | Engineer | New York |
| 40 | Alice Lockwood | 55 | Wife | — | Canada |
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)