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Elizabeth Boyd — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Clair-County, Michigan
Our Model Tree links this Elizabeth Boyd across the 1930 and 1940 US Censuses in St.-Clair-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Michigan |
| Surname | Boyd |
| Given Name | Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Port Huron City |
| 1935 Residence (County) | St Clair |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Port Huron City |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Elizabeth | Age | Birth yr |
|---|---|---|---|---|
| Mansel Boyd | Son | — | 19 | ~1921 |
| Joanne Boyd | Daughter | — | 5 | ~1935 |
| William Boyd | Son | — | 17 | ~1923 |
| Donald Boyd | Son | — | 13 | ~1927 |
| Sarah Boyd | Spouse | — | 40 | ~1900 |
| Paul Boyd | Son | — | 8 | ~1932 |
| Elizabeth Boyd | Daughter | — | 11 | ~1929 |
| George Boyd | Son | — | 15 | ~1925 |
| William Boyd | Head | — | 45 | ~1895 |
| Carl Boyd | Son | — | 10 | ~1930 |
Census Appearances
1930
St Clair, …
Daughter, age 1
St Clair, Michigan · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyd |
| Given Name | Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Ireland |
| Mother's Birthplace | England |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
St.-Clair-County, Michigan
Daughter, age 11
St.-Clair-County, Michigan · implied b. ~1929 — 10 household members
| Surname | Boyd |
| Given Name | Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Port Huron City |
| 1935 Residence (County) | St Clair |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Elizabeth Boyd across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Elizabeth Boyd
Daughter · 1940 · age 11 · b. ~1929 · Michigan
★ You are viewing this record
Sibling
William Boyd
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Boyd
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mansel Boyd
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Boyd
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Boyd
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Boyd
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joanne Boyd
Sibling · 1940 · age 5
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 — St.-Clair-County, Michigan
Open full size
1940 US Federal Census — St.-Clair-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01816-00098)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isaac Mabee | 56 | Head | Wholesale Salesman | Michigan |
| 2 | Carrie Mabee | 56 | Wife | — | Michigan |
| 3 | Chas Crell | 42 | Lodger | Music Teacher | Michigan |
| 4 | Ralph Wadsworth | 24 | Head | Laborer | Michigan |
| 5 | Henrietta Wadsworth | 23 | Wife | — | Michigan |
| 6 | Deane Wadsworth | 1 | Son | — | Michigan |
| 7 | Zelma Adams | 33 | Head | Saleswoman | Michigan |
| 8 | Barbara Adams | 13 | Daughter | — | Michigan |
| 9 | Gerald Adams | 11 | Son | — | Michigan |
| 10 | Paul Adams | 10 | Son | — | Michigan |
| 11 | W Mccalloch | 58 | Head | Plumber | Michigan |
| 12 | Carrie Mccalloch | 53 | Wife | — | Canada-English |
| 13 | James Mccalloch | 20 | Son | Delivery Boy | Michigan |
| 14 | Shirley Mccalloch | 17 | Daughter | — | Michigan |
| 15 | John Johnson | 34 | Head | Machine Operator | Washington |
| 16 | Florence Johnson | 22 | Wife | — | Michigan |
| 17 | John Johnson | 2 | Son | — | Michigan |
| 18 | Daniel W Johnson | 1 | Son | — | Michigan |
| 19 | Edward Pratt | 63 | Head | — | Michigan |
| 20 | Bertha M Pratt | 52 | Wife | — | Michigan |
| 21 | Wm H Hurd | 76 | Head | — | Ohio |
| 22 | Sarah E Hurd | 77 | Wife | — | Canada-English |
| 23 | Daniel H Wood | 68 | Lodger | — | Michigan |
| 24 | William Boyd | 45 | Head | Clergyman | Northern Ireland |
| 25 | Sarah Boyd | 40 | Wife | — | Canada-English |
| 26 | Mansel Boyd | 19 | Son | — | Canada-English |
| 27 | William Boyd | 17 | Son | — | Canada-English |
| 28 | George Boyd | 15 | Son | — | Canada-English |
| 29 | Donald Boyd | 13 | Son | — | Canada-English |
| 30 | Elizabeth Boyd THIS PERSON | 11 | Daughter | — | Michigan |
| 31 | Carl Boyd | 10 | Son | — | Michigan |
| 32 | Paul Boyd | 8 | Son | — | Michigan |
| 33 | Joanne Boyd | 5 | Daughter | — | Michigan |
| 34 | John Pringle | 28 | Head | Sand Blast | Michigan |
| 35 | Mary Pringle | 24 | Wife | — | Michigan |
| 36 | Jeanette Pringle | 7 | Daughter | — | Michigan |
| 37 | Ora Pringle | 1 | Son | — | Michigan |
| 38 | Ira Hall | 67 | Father-in-law | Laborer | Michigan |
| 39 | Belle Jarman | 55 | Head | Clerical | Michigan |
| 40 | Philomena Stuart | 73 | Head | — | Canada-French |
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)