GC
Gertrude Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harford-County, Maryland
Our Model Tree links this Gertrude Clark across the 1920, 1930 and 1940 US Censuses in Harford-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1878), then head of a 3-person household.
Age 62
b. ~1878
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Harford-County, Maryland |
| Surname | Clark |
| Given Name | Gertrude |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Bel Air |
| 1935 Residence (County) | Harford |
| Additional Details | |
| Occupation | House Wife |
| Industry | Own Home |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | House Wife |
| Township / Ward | Bel Air |
| Est. Birth Year | ~1878 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Gertrude | Age | Birth yr |
|---|---|---|---|---|
| Hugh Clark | Head | — | 61 | ~1879 |
| Gertrude Clark | Spouse | — | 62 | ~1878 |
| Evelyn Vaughan | Daughter | — | 24 | ~1916 |
Census Appearances
1920
Harford, Maryland
Spouse, age 42
Harford, Maryland · implied b. ~1878 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Gertrude E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Harford, Maryland
Other, age 51
Harford, Maryland · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Gertrude E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 36 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Harford-County, Maryland
Spouse, age 62
Harford-County, Maryland · implied b. ~1878 — 3 household members
| Surname | Clark |
| Given Name | Gertrude |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Bel Air |
| 1935 Residence (County) | Harford |
| Occupation | House Wife |
| Industry | Own Home |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Gertrude Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Gertrude Clark
Spouse · 1940 · age 62 · b. ~1878 · 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 — Harford-County, Maryland
Open full size
1940 US Federal Census — Harford-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01551-00505)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nancy Ruff | 10 | — | — | Maryland |
| 42 | Silas Mahan | 65 | Head | — | Maryland |
| 43 | Harry Mcvake | 54 | Head | Sect. & Treas. | Maryland |
| 44 | Gola Mcvake | 36 | House Keeper | House Keeper | South Carolina |
| 45 | Emory Lee Mcvake | 14 | Son | — | Maryland |
| 46 | Fred R. Tucker | 57 | Head | Vice Pres. | Maryland |
| 47 | Elva Tucker | 46 | Wife | House Wife | Maryland |
| 48 | Hugh Clark | 61 | Head | Painter | Maryland |
| 49 | Gertrude Clark THIS PERSON | 62 | Wife | House Wife | Maryland |
| 50 | Evelyn Vaughan | 24 | Daughter | Asst. House Keeper | Maryland |
| 51 | Curtis Rose | 30 | Head | Janitor | Maryland |
| 52 | Sara Rose | 30 | Wife | House Wife | Pennsylvania |
| 53 | Charles Rose | 10 | Son | — | Maryland |
| 54 | Dorothy Rose | 8 | Daughter | — | Maryland |
| 55 | Donald L. Rose | 1 | Son | — | Maryland |
| 56 | Mary E. G. Smithson | 81 | Head | House Wife | Maryland |
| 57 | Robert Phelps | 71 | Nephew | Farmer | Maryland |
| 58 | Mary Phelps | 52 | Niece | Teacher | Maryland |
| 59 | William W. Everett | 75 | Head | Carpenter | Maryland |
| 60 | Hannah R. Everett | 62 | Wife | House Wife | Maryland |
| 61 | John Everett | 36 | Son | Lineman | Maryland |
| 62 | W. Elmer Johnson | 70 | Head | Laborer On Farm | Maryland |
| 63 | Florence Johnson | 58 | Wife | House Wife | Maryland |
| 64 | Mary Dunning | 50 | Head | Teacher | Maryland |
| 65 | Roger Tucker | 28 | Boarder | Mechanic | Maryland |
| 66 | Mary Tucker | 30 | Boarder | House Wife | Maryland |
| 67 | Elaine Tucker | 4 | Daughter | — | Maryland |
| 68 | Beckly D. Tucker | 5 | Son | — | Maryland |
| 69 | Ellis T. Reynolds | 51 | Head | — | Maryland |
| 70 | Berta R. Reynolds | 61 | Wife | House Wife | Maryland |
| 71 | Barclay Tucker | 62 | Head | President | Maryland |
| 72 | Julia S. Tucker | 68 | Wife | House Wife | Maryland |
| 73 | John Peterson | 76 | Head | Retired Judge | Maryland |
| 74 | Goldie R. Morris | 33 | Daughter | House Wife | Maryland |
| 75 | William Morris | 37 | Son-in-law | Asst. County Mgr. | Maryland |
| 76 | Billy Morris | 10 | Grandson | — | Maryland |
| 77 | Chester P. Greer | 52 | Head | Nurseryman | Maryland |
| 78 | Syrilla Greer | 53 | Wife | House Wife | Maryland |
| 79 | Elmon Greer | 26 | Daughter | Teacher | Maryland |
| 80 | Thomas Harkins | 67 | Head | Farmer | 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)