TS
Thomas Simmons — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Thomas Simmons across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Ernest & Ethel — first a son (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Simmons |
| Given Name | Thomas K. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden (City) |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Hours Worked | 7 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Malden City |
| Est. Birth Year | ~1915 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Eliza Thomas | Other | — | 80 | ~1860 |
| Ernest Simmons | Head | — | 61 | ~1879 |
| Thomas Simmons | Son | — | 25 | ~1915 |
| Olivette Simmons | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 4
Middlesex, Massachusetts · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Maine |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 14
Middlesex, Massachusetts · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | Thomas S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Maine |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 25
Middlesex-County, Massachusetts · implied b. ~1915 — 4 household members
| Surname | Simmons |
| Given Name | Thomas K. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden (City) |
| 1935 Residence (County) | Middlesex |
| Hours Worked | 7 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Simmons across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ernest Simmons (~0.92 confidence) and mother Ethel Simmons (~0.92 confidence) and mother Hyerta Simmons (~0.92 confidence) and mother Olivette Simmons (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ernest Simmons
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Ethel Simmons
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Hyerta Simmons
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Olivette Simmons
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Simmons
Son · 1940 · age 25 · b. ~1915 · Massachusetts
★ 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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01609-00393)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred H. Gretter | 42 | wife | — | Vermont |
| 2 | Ralph Gretter | 20 | son | — | Massachusetts |
| 3 | Robert Gretter | 19 | son | — | Massachusetts |
| 4 | Leslie W. Gretter | 17 | son | — | Massachusetts |
| 5 | Fay Gretter | 16 | daughter | — | Massachusetts |
| 6 | Alma L. Gretter | 13 | daughter | — | Massachusetts |
| 7 | M. Belle Watson | 80 | m-low | — | Vermont |
| 8 | Ignat Scuderi | 46 | head | Plasterer | Italy |
| 9 | Grace Scuderi | 36 | wife | — | Italy |
| 10 | Peter Bonenoci | 20 | nephew | Plasterer | Same house |
| 11 | Josephine Bonenoci | 19 | niece | Stock Clerk | Same house |
| 12 | Robert O. Ruglieri | 29 | head | Chauffeur | Massachusetts |
| 13 | Constance Ruglieri | 24 | wife | Stitcher | Massachusetts |
| 15 | Ernest L. Simmons | 61 | head | Laborer | Maine |
| 16 | Olivette Simmons | 56 | wife | — | Massachusetts |
| 17 | Thomas K. Simmons THIS PERSON | 25 | son | — | Massachusetts |
| 18 | Eliza D. Thomas | 80 | lodger | — | Canada English |
| 19 | George R. Toothaker | 37 | head | Manager | Massachusetts |
| 20 | Eunice Toothaker | 31 | wife | — | Massachusetts |
| 21 | George Toothaker | 13 | son | — | Massachusetts |
| 22 | Robert Toothaker | 11 | son | — | Massachusetts |
| 23 | Kenneth Toothaker | 10 | son | — | Massachusetts |
| 24 | Donald Toothaker | 7 | son | — | Massachusetts |
| 25 | Frederick G. Wyre | 38 | head | Furniture Finisher | England |
| 26 | Regina Wyre | 42 | wife | Candy Packer | Sweden |
| 27 | Francis Mcdonough | 28 | head | Cable Splicer | Massachusetts |
| 28 | Mary Mcdonough | 27 | wife | — | Massachusetts |
| 29 | Francis Jr. Mcdonough | 0 | son | — | Massachusetts |
| 30 | Daniel J. Tarbell | 48 | head | — | Vermont |
| 31 | Robert H. Tarbell | 24 | son | Bookkeeper | Vermont |
| 32 | Jessie F. Tarbell | 23 | daughter in law | Waitress | Massachusetts |
| 33 | Minnie F. Dunton | 70 | aunt | — | Vermont |
| 34 | August G. Waelde | 79 | head | — | Pennsylvania |
| 35 | Mary A. Waelde | 48 | daughter | — | Massachusetts |
| 36 | Harold S. Waelde | 31 | son | Chauffeur | Massachusetts |
| 37 | Ernest A. Boudreau | 51 | head | Bridge Worker | Canada English |
| 38 | Mary A. Boudreau | 51 | wife | Sales | Canada English |
| 39 | Mary C. Boudreau | 12 | daughter | — | Massachusetts |
| 40 | Emily A. Munday | 43 | head | Long Distance Operator | Massachusetts |
Pedigree Summary
Thomas
Gen 1 · 4 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)