AB
Alma Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this Alma Brown across the 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 6-person household.
Age 39
b. ~1901
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Brown |
| Given Name | Alma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Occupation | House worker |
| Industry | House work |
| Class of Worker | PW |
| Hours Worked | 5 |
| Income (1939) | 100 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | House Worker |
| Township / Ward | Frederick City |
| Est. Birth Year | ~1901 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Alma | Age | Birth yr |
|---|---|---|---|---|
| Alma Brown | Spouse | — | 39 | ~1901 |
| Charles Brown | Son | — | 9 | ~1931 |
| Edward Brown | Son | — | 14 | ~1926 |
| Amos Brown | Head | — | 44 | ~1896 |
| Katherine Brown | Daughter | — | 15 | ~1925 |
| Ruth Brown | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Frederick, Maryland
Spouse, age 28
Frederick, Maryland · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Alma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 17 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Spouse, age 39
Frederick-County, Maryland · implied b. ~1901 — 6 household members
| Surname | Brown |
| Given Name | Alma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Occupation | House worker |
| Industry | House work |
| Class of Worker | PW |
| Hours Worked | 5 |
| Income (1939) | 100 |
| 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 Alma Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Alma Brown
Spouse · 1940 · age 39 · b. ~1901 · 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-t0627-01548-00384)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jesse T. Williams | 46 | Head | Minister | Virginia |
| 2 | Florence Williams | 44 | Wife | — | Illinois |
| 3 | James W. Porter | 66 | Head | Curb Setter | Maryland |
| 4 | Haddie E. Porter | 55 | Wife | — | Maryland |
| 5 | Haddie L. Ross | 45 | Friend | — | Maryland |
| 6 | Amos Brown | 44 | Head | Cook | Maryland |
| 7 | Alma Brown THIS PERSON | 39 | Wife | House Worker | Maryland |
| 8 | Katherine Brown | 15 | Daughter | — | Maryland |
| 9 | Edward Brown | 14 | Son | — | Maryland |
| 10 | Charles R. Brown | 9 | Son | — | Maryland |
| 11 | Ruth Brown | 10 | Daughter | — | Maryland |
| 12 | James P. Dorsey | 52 | Head | Waiter | Maryland |
| 13 | Mary C. Dorsey | 51 | Wife | Laundress | Maryland |
| 14 | Margaret Fletcher | 19 | Daughter | — | Maryland |
| 15 | Naomi Johnson | 19 | Sister-in-law | — | Maryland |
| 16 | Frank Roberts | 39 | Head | Waiter | Maryland |
| 17 | Christine Roberts | 39 | Wife | House Work | Maryland |
| 18 | Dolores Roberts | 8 | Daughter | — | Maryland |
| 19 | Susan Ware | 51 | Mother-in-law | Waiter | Maryland |
| 20 | Selmay Ware | 31 | Sister-in-law | Housekeeper | Maryland |
| 21 | Anita Langley | 19 | Sister-in-law | — | Maryland |
| 22 | Henry Brown | 46 | Head | Bellman | Maryland |
| 23 | Zulda Brown | 47 | Wife | Housekeeper | Maryland |
| 24 | Gladys Brown | 23 | Daughter | Beautician | Maryland |
| 25 | Charles Brown | 20 | Son | New Worker | Maryland |
| 26 | May Sewell | 28 | Head | House Worker | Maryland |
| 27 | Janet Sewell | 11 | Daughter | — | Maryland |
| 28 | Walter Jr. Sewell | 7 | Son | — | Maryland |
| 29 | Betty Sewell | 5 | Daughter | — | Maryland |
| 30 | Phyllis Sewell | 3 | Daughter | — | Maryland |
| 31 | Marshall Williams | 37 | Head | Clerk | Maryland |
| 32 | Rose Williams | 31 | Wife | Chambermaid | Maryland |
| 33 | Joe Thomas | 60 | Lodger | Laborer | Maryland |
| 34 | Frank Holland | 57 | Head | Store Owner | Maryland |
| 35 | Norine Holland | 41 | Wife | Beautician | Maryland |
| 36 | Charles Burton | 30 | Head | Orderly | Maryland |
| 37 | Mary Burton | 27 | Wife | Maid | Maryland |
| 38 | Emily Boustine | 20 | Lodger | Domestic | Maryland |
| 39 | Walter Hammond | 44 | Head | Laborer | Maryland |
| 40 | Mary Hammond | 43 | Wife | Cook | 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)