WG
William Gardner — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this William Gardner across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 5-person household.
Age 66
b. ~1874
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Gardner |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1874 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Gardner | Head | — | 66 | ~1874 |
| Mable Gardner | Other | — | 37 | ~1903 |
| Hess Gardner | Other | — | 99 | ~1841 |
| William Gardner | Other | — | 25 | ~1915 |
| Preston Gardner | Son | — | 39 | ~1901 |
Census Appearances
1920
None, Maryland
Head, age 44
None, Maryland · implied b. ~1876 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Inspector |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Head, age 55
Baltimore, Maryland · implied b. ~1875 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 19 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 15 |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 66
Baltimore-City-County, Maryland · implied b. ~1874 — 5 household members
| Surname | Gardner |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 William Gardner across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
William Gardner
Head · 1940 · age 66 · b. ~1874 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
36 people indexed on this census page (nara:1940:m-t0627-01519-00319)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ellen O'Neill | 52 | Wife | — | Irish Free State |
| 42 | George O'Neill | 25 | Son | Salesman | Maryland |
| 43 | Bernard O'Neill | 23 | Son | Gauger | Maryland |
| 44 | Loretta O'Neill | 22 | Daughter | Stenographer | Maryland |
| 45 | Jean Shearn | 80 | Head | — | Maryland |
| 46 | Anna Shearn | 72 | Sister | — | Maryland |
| 47 | Janet Shearn | 66 | Sister | Proprietress | Maryland |
| 48 | Lillian Shearn | 60 | Sister | — | Maryland |
| 49 | Grace Shearn | 58 | Sister | — | Maryland |
| 50 | Thomas K. Barrett | 72 | Head | Retired | Irish Free State |
| 51 | Agnes H. Barrett | 58 | Wife | — | Maryland |
| 52 | Francis D. Brown | 38 | Head | Accountant | Maryland |
| 53 | Angela B. Brown | 36 | Wife | — | Maryland |
| 54 | Harry Lethrum | 33 | Head | Pharmacist | Maryland |
| 55 | Virginia B. Lethrum | 28 | Wife | Secretary | Maryland |
| 56 | Lawrence Reinart | 28 | Head | — | Pennsylvania |
| 57 | Helen Reinart | 28 | Wife | — | Pennsylvania |
| 58 | Lilly G. O'Donovan | 60 | Head | — | Maryland |
| 59 | Harold C. O'Donovan | 26 | Son | — | Maryland |
| 60 | Anna O'Donovan | 22 | Daughter-in-law | Clerk | Maryland |
| 61 | Eleanor Stratt | 6 | Granddaughter | — | Maryland |
| 62 | Joseph Rodgers | 55 | Lodger | Sales Manager | Massachusetts |
| 63 | J. Arthur Pfeiffer | 56 | Head | Physician | Delaware |
| 64 | Mary M. Pfeiffer | 55 | Wife | — | Maryland |
| 65 | Ella B. Heinen | 86 | Head | — | Maryland |
| 66 | Marion B. Heinen | 58 | Daughter | — | Maryland |
| 67 | Alfred Bagby | 73 | Head | Lawyer | Virginia |
| 68 | Janet Campbell Bagby | 69 | Wife | — | Virginia |
| 69 | Anne C. Bagby | 36 | Daughter | Librarian | Maryland |
| 70 | William Gardner THIS PERSON | 66 | Head | — | Maryland |
| 71 | Preston M. Gardner | 39 | Son | Salesman | Maryland |
| 72 | Mable P. Gardner | 37 | Daughter-in-law | — | Maryland |
| 73 | William P. Gardner | 25 | Grandson | Salesman | Maryland |
| 74 | Hess Gardner | 99 | End block | — | — |
| 75 | George L. Ewalt | 64 | Head | Physician | Maryland |
| 76 | Emma M. Ewalt | 63 | Wife | — | Maryland |
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)