JH
Julia Hill — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this Julia Hill across the 1920, 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1899), then head of a 5-person household.
Age 41
b. ~1899
Female
Head
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Hill |
| Given Name | Julia |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Occupation | Laundress |
| Industry | State school |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 448 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laundress |
| Township / Ward | Frederick City |
| Est. Birth Year | ~1899 |
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 Julia | Age | Birth yr |
|---|---|---|---|---|
| Julia Hill | Daughter | — | 21 | ~1919 |
| Anna Crampton | Daughter | — | 24 | ~1916 |
| Gwendolyn Crampton | Daughter | — | 3 | ~1937 |
| Esther Hill | Daughter | — | 22 | ~1918 |
| Julia Hill | Head | — | 41 | ~1899 |
Census Appearances
1920
Frederick, Maryland
Spouse, age 23
Frederick, Maryland · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hill |
| Given Name | Julia M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| 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
Frederick, Maryland
Other, age 32
Frederick, Maryland · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hill |
| Given Name | Julia |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 17 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laundress |
| Industry | Maryland Hotel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Head, age 41
Frederick-County, Maryland · implied b. ~1899 — 5 household members
| Surname | Hill |
| Given Name | Julia |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Occupation | Laundress |
| Industry | State school |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 448 |
| Highest Grade | No 7 |
| 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 Julia Hill across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Julia Hill
Head · 1940 · age 41 · b. ~1899 · 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 — Frederick-County, Maryland
Open full size
1940 US Federal Census — Frederick-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01548-00410)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Amanda Dayton | 35 | Wife | — | Pennsylvania |
| 2 | Cynthia Dayton | 10 | Daughter | — | Maryland |
| 3 | Shirley Dayton | 9 | Daughter | — | Maryland |
| 4 | Henderson Roberts | 41 | Head | Barber | Maryland |
| 5 | Consuelo Roberts | 38 | Wife | — | Maryland |
| 6 | Kenneth Baker | 30 | Boarder | Teacher | Virginia |
| 7 | Anita Baker | 25 | Boarder | Teacher | Virginia |
| 8 | Christopher Woelner | 66 | Head | — | Maryland |
| 9 | Mary S. Woelner | 52 | Wife | — | Maryland |
| 10 | Mary Alice Woelner | 23 | Daughter | Packer | Maryland |
| 11 | Kenneth Woelner | 20 | Son | Mechanic | Maryland |
| 12 | Julia Hill THIS PERSON | 41 | Head | Laundress | Maryland |
| 13 | Esther Hill | 22 | Daughter | Laundress | Maryland |
| 14 | Julia Hill | 21 | Daughter | Teacher | Maryland |
| 15 | Anna Crampton | 24 | Daughter | Cook | Maryland |
| 16 | Gwendolyn Crampton | 3 | Daughter | — | Maryland |
| 17 | W. G. Jr. Bourne | 34 | Head | Medical Doctor | Maryland |
| 18 | Marie T. Bourne | 26 | Wife | — | Texas |
| 19 | Mary Ada Jones | 79 | Boarder | — | Maryland |
| 20 | Eliza Carter | 6 | Boarder | — | Maryland |
| 21 | Eugene Weldon | 24 | Boarder | Junk Dealer | Maryland |
| 22 | Charles Young | 56 | Head | Farm Laborer | Maryland |
| 23 | Daisy Young | 56 | Wife | — | Maryland |
| 24 | William F. Jackson | 39 | Head | Truck Driver | Maryland |
| 25 | Minnie Price | 44 | Boarder | Maid | Maryland |
| 26 | Joseph Williams | 49 | Head | Stone Breaker | South Carolina |
| 27 | Earl Lowe | 29 | Boarder | Laundress | Maryland |
| 28 | Cora Beaner | 55 | Head | Laborer | Maryland |
| 29 | Joseph Beaner | 64 | Husband | — | Maryland |
| 30 | Clarissa Beaner | 9 | Daughter | — | Maryland |
| 31 | Joseph Beaner | 11 | Son | — | Maryland |
| 32 | Ida Hoffman | 41 | Head | Practical Nurse | Maryland |
| 33 | Kenneth Hoffman | 18 | Son | — | Maryland |
| 34 | Garland Hoffman | 20 | Son | Clerk | Maryland |
| 35 | John Hoffman | 12 | Son | — | Maryland |
| 36 | William Ridgely | 26 | Head | Grocery Clerk | Maryland |
| 37 | Grace Ridgely | 21 | Wife | Dime Store Clerk | Maryland |
| 38 | Thurston Gross | 35 | Head | Cook | Maryland |
| 39 | Harry Weldon | 37 | Roomer | Cook | Maryland |
| 40 | John Watkins | 30 | Roomer | Laborer | Maryland |
Related Census Records
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)