BT
Bertha Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Maine
Our Model Tree links this Bertha Thompson across the 1920, 1930 and 1940 US Censuses in Washington-County, Maine (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 4-person household.
Age 67
b. ~1873
Female
Head
Born: Maine
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Maine |
| Surname | Thompson |
| Given Name | Bertha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Maine |
| Additional Details | |
| Highest Grade | G 8 |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Township / Ward | Addison Point |
| Est. Birth Year | ~1873 |
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 Bertha | Age | Birth yr |
|---|---|---|---|---|
| Bertha Thompson | Head | — | 67 | ~1873 |
| Annie Thompson | Other | — | 25 | ~1915 |
| Earland Thompson | Other | — | ~1940 | |
| Frank Thompson | Son | — | 26 | ~1914 |
Census Appearances
1920
Washington, Maine
Spouse, age 47
Washington, Maine · implied b. ~1873 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Bertha S |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
Washington, Maine
Head, age 57
Washington, Maine · implied b. ~1873 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Bertha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | General |
| Can Read/Write | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Washington-County, Maine
Head, age 67
Washington-County, Maine · implied b. ~1873 — 4 household members
| Surname | Thompson |
| Given Name | Bertha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Maine |
| Highest Grade | G 8 |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Bertha Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Thompson
Head · 1940 · age 67 · b. ~1873 · Maine
★ 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 — Washington-County, Maine
Open full size
1940 US Federal Census — Washington-County, Maine
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01493-00672)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Winona Lovejoy | 1 | Daughter | — | Maine |
| 42 | Charlene Kinghorn | 1 | Grand-daughter | — | Maine |
| 43 | Harold Lovejoy | 15 | Son-in-law | — | Maine |
| 44 | Lorraine Lovejoy | 8 | Grand-daughter | — | Maine |
| 45 | Marie Kinghorn | 5 | Grand-daughter | — | Maine |
| 46 | Elmer Lovejoy | 28 | Head | Labour | Maine |
| 47 | Gertrude Lovejoy | 25 | Wife | — | Maine |
| 48 | Elmer, Jr. Lovejoy | 6 | Son | — | Maine |
| 49 | Betty Lovejoy | 4 | Daughter | — | Maine |
| 50 | Winfield Kinghorn | 27 | Head | Fisherman | Maine |
| 51 | Alice M. Kinghorn | 27 | Wife | — | Maine |
| 52 | Bernice Kinghorn | 6 | Daughter | — | Maine |
| 53 | Alice Kinghorn | 2 | Daughter | — | Maine |
| 54 | Stephen Kinghorn | 69 | Father | — | Maine |
| 55 | Joyce Kinghorn | 3 | Niece | — | Maine |
| 56 | Alfred Lovejoy | 33 | Head | — | Maine |
| 57 | Elsie Lovejoy | 27 | Wife | — | Maine |
| 58 | Tracey, Dorothy Lovejoy | 8 | Ward | — | Maine |
| 59 | Bertha Thompson THIS PERSON | 67 | Head | — | Maine |
| 60 | Frank Thompson | 26 | Son | — | Maine |
| 61 | Annie F. Thompson | 25 | Daughter-in-law | — | Maine |
| 62 | Earland Thompson | 0 | Grandson | — | Maine |
| 63 | Ruberta Carter | 56 | Head | — | Maine |
| 64 | Alberton Carter | 20 | Son | — | Maine |
| 65 | Marjorie Carter | 18 | Daughter | — | Maine |
| 66 | Stanley Carter | 15 | Son | — | Maine |
| 67 | George Lovejoy | 65 | Head | — | Maine |
| 68 | Myra Lovejoy | 60 | Wife | — | Maine |
| 69 | Lewis Lackee | 51 | Head | Clerk | Maine |
| 70 | Margery Lackee | 50 | Wife | Assistant To Postmaster | Maine |
| 71 | Carroll Plummer | 60 | Head | — | Maine |
| 72 | Victor Nash | 76 | Head | — | Maine |
| 73 | Mabel Nash | 75 | Wife | — | Maine |
| 74 | Albert H. Ward | 69 | Head | — | Maine |
| 75 | Charlena Ward | 61 | Wife | — | Massachusetts |
| 76 | Fred Leighton | 42 | Head | — | Maine |
| 77 | Bertha Leighton | 31 | Wife | — | Maine |
| 78 | Preston Leighton | 39 | Brother | — | Maine |
| 79 | Albert L. Dalot | 57 | Head | — | New York |
| 80 | Julia H. Dalot | 53 | Wife | — | Maine |
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)