WC
William Carr — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this William Carr across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 4-person household.
Age 56
b. ~1874
Male
Head
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Carr |
| Given Name | William A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 20 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Butler |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Butler |
| 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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Edith Carr | Daughter | — | 26 | ~1904 |
| S Carr | Daughter | — | 23 | ~1907 |
| William Carr | Head | — | 56 | ~1874 |
| Gertrude Carr | Spouse | — | 54 | ~1876 |
Census Appearances
1920
Baltimore, Maryland
Head, age 45
Baltimore, Maryland · implied b. ~1875
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Carr |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Checker |
| Industry | Shipyard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Head, age 56
Baltimore, Maryland · implied b. ~1874 — 4 household members
| Surname | Carr |
| Given Name | William A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 20 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Butler |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| 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 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carr |
| Given Name | Wm W |
| 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 |
| Occupation | Teller |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | C 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 Carr across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Carr
Head · 1930 · age 56 · b. ~1874 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus857unit:0949)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Woods | 35 | Head | Chauffeur | Virginia |
| 2 | Erma M. Woods | 34 | Wife | Laundress | Maryland |
| 3 | Gresham Lucy Woods | 6 | Niece | — | Maryland |
| 4 | Ella Fennick | 49 | Head | House Maid | Maryland |
| 5 | Clarence Fennick | 18 | Son | — | Maryland |
| 6 | May E. Thomas | 20 | Niece | House Maid | Maryland |
| 7 | Theresa M. Thomas | 24 | Niece | House Maid | Maryland |
| 8 | Regina E. Holmes | 21 | Niece | Maid | Maryland |
| 9 | H. Flagerman | 47 | Roomer | Laborer | Maryland |
| 10 | Rosa Woodfork | 26 | Roomer | House Maid | Maryland |
| 11 | Cleo Woodfork | 17 | Roomer | — | Maryland |
| 12 | Raymond Taliaferro | 36 | Head | Writer | Pennsylvania |
| 13 | Hazel Taliaferro | 29 | Wife | — | Georgia |
| 14 | William Langley | 32 | Roomer | Proprietor | Virginia |
| 15 | Joseph E. Gollich | 39 | Head | Proprietor | Maryland |
| 16 | Esther M. Gollich | 30 | Wife | — | Virginia |
| 17 | Atlanta Gollich | 6 | Daughter | — | Pennsylvania |
| 18 | Joseph Jr. Gollich | 4 | Son | — | Maryland |
| 19 | Frances L. Gollich | 2 | Daughter | — | Maryland |
| 20 | Lucile Gollich | 1 | Daughter | — | Maryland |
| 21 | Cecilia Gollich | 0 | Daughter | — | Maryland |
| 22 | Jessie Nickens | 30 | Head | Laborer | Virginia |
| 23 | Lucilia Nickens | 25 | Wife | House Maid | Virginia |
| 24 | Etta C. Nickens | 8 | Daughter | — | Virginia |
| 25 | Pauline S. Wharton | 54 | Head | Teacher | Maryland |
| 26 | Constantia Wharton | 31 | Daughter | Teacher | Maryland |
| 27 | Hermione Wharton | 29 | Daughter | Teacher | Maryland |
| 28 | Pauline B. Wharton | 23 | Daughter | Teacher | Maryland |
| 29 | David L. Penn | 53 | Head | Cook | Virginia |
| 30 | Mary L. Penn | 51 | Wife | — | Virginia |
| 31 | David O. Jr. Penn | 23 | Son | — | Maryland |
| 32 | Estelle Davis | 54 | Head | Teacher | New Jersey |
| 33 | John H. Douglass | 57 | Head | Letter Carrier | Washington D.C. |
| 34 | Henrietta Douglass | 52 | Wife | — | Maryland |
| 35 | Henry F. Douglass | 16 | Son | — | Maryland |
| 36 | George H. Grant | 48 | Head | Butler | Virginia |
| 37 | Nellie F. Grant | 47 | Wife | House Maid | Virginia |
| 38 | William C. Grant | 61 | Head | Agent | Virginia |
| 39 | Mary J. Grant | 25 | Daughter | Teacher | Maryland |
| 40 | Delma C. White | 32 | Daughter | — | Maryland |
| 41 | Harry P. White | 6 | Gr. Child | — | New York |
| 42 | Joseph Trautwein | 69 | Head | Proprietor | Germany |
| 43 | Otis W. Washington | 40 | Head | Porter | Virginia |
| 44 | Bessie C. Washington | 29 | Wife | House Maid | Maryland |
| 45 | Evelyn V. Washington | 14 | Daughter | — | Maryland |
| 46 | Clara Bird | 18 | Roomer | House Maid | Virginia |
| 47 | William A. Carr THIS PERSON | 56 | Head | Butler | Maryland |
| 48 | Gertrude M. Carr | 54 | Wife | Cook | Maryland |
| 49 | S. Elizabeth Carr | 23 | Daughter | — | Maryland |
| 50 | Edith H. Carr | 26 | Daughter | Teacher | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)