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Leonard Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Leonard Davis across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Davis |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1927 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leonard | Age | Birth yr |
|---|---|---|---|---|
| William Davis | Head | — | 40 | ~1900 |
| William Davis | Son | — | 16 | ~1924 |
| Leonard Davis | Son | — | 13 | ~1927 |
| Rita Davis | Daughter | — | 9 | ~1931 |
| Allan Davis | Son | — | 4 | ~1936 |
| Annie Davis | Spouse | — | 41 | ~1899 |
| Mary Davis | Daughter | — | 11 | ~1929 |
| Milford Davis | Son | — | 19 | ~1921 |
| Clarence Davis | Son | — | 11 | ~1929 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 3
Suffolk, Massachusetts · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Leonard F. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 13
Suffolk-County, Massachusetts · implied b. ~1927 — 9 household members
| Surname | Davis |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| 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 Leonard Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Leonard Davis
Son · 1940 · age 13 · b. ~1927 · Massachusetts
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Sibling
Rita Davis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Davis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Davis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Davis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allan Davis
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milford Davis
Sibling · 1940 · age 19
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01667-00462)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Snowden | 50 | Head | Harnessman | Massachusetts |
| 42 | Alice Snowden | 42 | Wife | — | Massachusetts |
| 43 | Howard Trimble | 29 | Head | Porter | Michigan |
| 44 | Catherine Trimble | 22 | Wife | Part Time Maid | Virginia |
| 45 | Florence Trimble | 8 | Daughter | — | Massachusetts |
| 46 | Shirley Trimble | 1 | Daughter | — | Massachusetts |
| 47 | Kintry Elliott | 39 | Head | Dressmaker | B. W. I. |
| 48 | Charles Elliott | 17 | Son | — | Massachusetts |
| 49 | Cecil Elliott | 16 | Son | — | Massachusetts |
| 50 | Kenneth Elliott | 14 | Son | — | Massachusetts |
| 51 | George Elliott | 13 | Son | — | Massachusetts |
| 52 | Norman Elliott | 11 | Son | — | Massachusetts |
| 53 | William Davis | 40 | Head | Labourer | N. S. Canada |
| 54 | Annie Davis | 41 | Wife | — | N. S. Canada |
| 55 | Milford Davis | 19 | Son | Porter | Massachusetts |
| 56 | William Jr. Davis | 16 | Son | — | Massachusetts |
| 57 | Leonard Davis THIS PERSON | 13 | Son | — | Massachusetts |
| 58 | Clarence Davis | 11 | Son | — | Massachusetts |
| 59 | Mary Davis | 11 | Daughter | — | Massachusetts |
| 60 | Rita Davis | 9 | Daughter | — | Massachusetts |
| 61 | Allan Davis | 4 | Son | — | Massachusetts |
| 62 | Charles Rose | 40 | Head | Cook | Portugal |
| 63 | Pauline Rose | 35 | Wife | — | Massachusetts |
| 64 | Emmeline Rose | 4 | Daughter | — | Massachusetts |
| 65 | Dolores Rose | 2 | Daughter | — | Massachusetts |
| 66 | Lilian Mcmillan | 53 | Head | — | Virginia |
| 67 | Lucie Mcmillan | 24 | Daughter | General Maid | Massachusetts |
| 68 | Florence Mcmillan | 23 | Daughter | Waitress | Massachusetts |
| 69 | Elma Mcmillan | 19 | Daughter | Maid | Massachusetts |
| 70 | Ella Mcmillan | 16 | Daughter | — | Massachusetts |
| 71 | Joseph Mcmillan | 14 | Son | — | Massachusetts |
| 72 | Curtis Mcmillan | 4 | Son | — | Massachusetts |
| 73 | Curtis Hart | 34 | Head | Labourer | Alabama |
| 74 | Lois Hart | 34 | Wife | — | Alabama |
| 75 | Odessa Hart | 14 | Daughter | — | Alabama |
| 76 | Floyd Hart | 10 | Son | — | Alabama |
| 77 | Ernestine Hart | 8 | Daughter | — | Alabama |
| 78 | Viola Hart | 7 | Daughter | — | Massachusetts |
| 79 | Ruth Hart | 5 | Daughter | — | Massachusetts |
| 80 | Samuel Hart | 4 | Son | — | Massachusetts |
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)