ET
Ernest Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Monroe-County, New York
Our Model Tree links this Ernest Thomas across the 1920, 1930 and 1940 US Censuses in Monroe-County, New York (XGBoost, ~Confirmed), with identified parents Lewis & George — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, New York |
| Surname | Thomas |
| Given Name | Ernest S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Rochester |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Occupation | Tool & Die Maker |
| Industry | Maintenance Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1604 |
| Highest Grade | H-4 |
| 1935 Residence | New York |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Tool & Die Maker |
| Township / Ward | Rochester |
| Est. Birth Year | ~1910 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ernest | Age | Birth yr |
|---|---|---|---|---|
| Ernest Thomas | Son | — | 9 | ~1931 |
| Dorothy Thomas | Spouse | — | 34 | ~1906 |
| Ernest Thomas | Head | — | 30 | ~1910 |
| David Thomas | Son | — | 3 | ~1937 |
Census Appearances
1920
Monroe, New …
Son, age 9
Monroe, New York · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Monroe, New …
Son, age 20
Monroe, New York · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ernest |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Toolmaker |
| Industry | Optical Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Monroe-County, New …
Head, age 30
Monroe-County, New York · implied b. ~1910 — 4 household members
| Surname | Thomas |
| Given Name | Ernest S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Rochester |
| 1935 Residence (County) | Monroe |
| Occupation | Tool & Die Maker |
| Industry | Maintenance Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1604 |
| Highest Grade | H-4 |
| 1935 Residence | New York |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Ernest Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lewis Thomas (~0.92 confidence) and father George Thomas (~0.92 confidence) and mother Ella Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lewis Thomas
b. ~1882
Source father
● Household
· direct · ~0.92
Father
George Thomas
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Ella Thomas
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ernest Thomas
Head · 1940 · age 30 · b. ~1910 · New York
★ 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 — Monroe-County, New York
Open full size
1940 US Federal Census — Monroe-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02679-00452)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jane Armbruster | 19 | Niece | — | New York |
| 42 | Paul Armbruster | 17 | Nephew | — | Louisiana |
| 43 | David Armbruster | 15 | Nephew | — | New York |
| 44 | Joseph J. Allard | 39 | Head | Restauranteur | New York |
| 45 | Pauline Allard | 35 | Wife | — | New York |
| 46 | Helen (X) Dutcher | 75 | Mother | — | New York |
| 47 | George C. Marks | 41 | Head | Farmer | New York |
| 48 | Imogene Marks | 40 | Wife | — | New York |
| 49 | Virginia G. Marks | 16 | Daughter | — | New York |
| 50 | Marjorie J. Marks | 12 | Daughter | — | New York |
| 51 | Ernestine Barnes | 75 | Mother-in-law | — | New York |
| 52 | Donald Heiden | 23 | Nephew | Farmer | New York |
| 53 | Ernest S. Thomas THIS PERSON | 30 | Head | Tool & Die Maker | Pennsylvania |
| 54 | Dorothy (X) Thomas | 34 | Wife | Demonstrator | Ohio |
| 55 | Ernest G. Thomas | 9 | Son | — | New York |
| 56 | David O. Thomas | 3 | Son | — | New York |
| 57 | Georgia M. Bemish | 70 | Head | — | New York |
| 58 | Belle (X) Woodams | 55 | Housekeeper | Housework | New York |
| 59 | Louise Byers | 57 | Companion | Companion Helper | New York |
| 60 | Albert H. Waterstradt | 65 | Head | — | New York |
| 61 | Gertrude C. G. Waterstradt | 69 | Wife | — | New York |
| 62 | Sylvester Kleehamer | 44 | Head | Secretary-Treasurer | New York |
| 63 | Hilda (X) Kleehamer | 45 | Wife | — | New York |
| 64 | Mary D. Kleehamer | 72 | Mother-in-law | — | New York |
| 65 | Wendel Kleehamer | 17 | Son | — | New York |
| 66 | Marjorie Kleehamer | 16 | Daughter | — | New York |
| 67 | George Kleehamer | 11 | Son | — | New York |
| 68 | John Kleehamer | 9 | Son | — | New York |
| 69 | Mattie L. W. Drake | 71 | Head | — | New York |
| 70 | John C. Aldenbury | 45 | Son-in-law | Farmer | New York |
| 71 | Luetta Aldenbury | 43 | Daughter | — | New York |
| 72 | Louise E. Aldenbury | 21 | Daughter | — | New York |
| 73 | John Jr. Aldenbury | 19 | Son | Pin Boy | New York |
| 74 | Richard W. Thone | 37 | Head | Farmer (Manager) | England |
| 75 | Margaret (X) Thone | 32 | Wife | — | New York |
| 76 | William Thone | 5 | Son | — | New York |
| 77 | Frederick Thone | 1 | Son | — | New York |
| 78 | William S. Thone | 32 | Brother | Salesman | England |
| 79 | Jesse Wilcock | 54 | Head | Farmer | England |
| 80 | Mabel (X) Wilcock | 46 | Wife | — | England |
Pedigree Summary
Ernest
Gen 1 · 3 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)