HW
Harriet Williams — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Harriet Williams across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 12-person household.
Age 9
b. ~1921
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Williams |
| Given Name | Harriet R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore |
| Est. Birth Year | ~1921 |
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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harriet | Age | Birth yr |
|---|---|---|---|---|
| Margaret Andrews | Other | — | 60 | ~1870 |
| Margaret Ferguson | Daughter | — | 14 | ~1916 |
| John Ferguson | Son | — | 20 | ~1910 |
| Helen Ferguson | Daughter | — | 18 | ~1912 |
| Catherine Williams | Other | — | 37 | ~1893 |
| Dany Williams | Daughter | — | 12 | ~1918 |
| Alice Ferguson | Daughter | — | 12 | ~1918 |
| Margaret Ferguson | Other | — | 34 | ~1896 |
| Roland Williams | Son | — | 14 | ~1916 |
| Charles Ferguson | Son | — | 16 | ~1914 |
| Harriet Williams | Daughter | — | 9 | ~1921 |
| Louis Williams | Head | — | 35 | ~1895 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 9
Baltimore, Maryland · implied b. ~1921 — 12 household members
| Surname | Williams |
| Given Name | Harriet R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 19
Baltimore-City-County, Maryland · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Hazel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| 1935 Residence (County) | Baltimore City |
| Industry | 0 |
| Highest Grade | Hs 1 |
| 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 Harriet Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harriet Williams
Daughter · 1930 · age 9 · b. ~1921 · Maryland
★ You are viewing this record
Sibling
Margaret Ferguson
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Ferguson
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dany Williams
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Ferguson
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Ferguson
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Ferguson
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roland Williams
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
48 people indexed on this census page (ia:1930:15thcensus870unit:0026)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Robert E. Wilson | 65 | Head | Foreman | Maryland |
| 52 | Sarah E. Wilson | 63 | Wife-H | — | Maryland |
| 53 | Louis S. Williams | 35 | Head | Machinist | Maryland |
| 54 | Catherine H. Williams | 37 | Wife-H | — | Pennsylvania |
| 55 | Roland S. Williams | 14 | Son | — | Maryland |
| 56 | Dany E. Williams | 12 | Daughter | — | Maryland |
| 57 | Harriet R. Williams THIS PERSON | 9 | Daughter | — | Maryland |
| 58 | Margaret Ferguson | 34 | H | — | Maryland |
| 59 | John C. Ferguson | 20 | Son | Apprentice | Maryland |
| 60 | Helen F. Ferguson | 18 | Daughter | Typist | Maryland |
| 61 | Charles S. Ferguson | 16 | Son | Salesman | Maryland |
| 62 | Margaret H. Ferguson | 14 | Daughter | — | Maryland |
| 63 | Alice B. Ferguson | 12 | Daughter | — | Maryland |
| 64 | Margaret Andrews | 60 | Boarder | Servant | Maryland |
| 65 | John M. Bertram | 65 | Head | Bookkeeper | Pennsylvania |
| 66 | Ethel S. Bertram | 36 | Daughter-H | — | Maryland |
| 67 | Edward K. Bertram | 35 | Son-In-Law | Carpenter | Maryland |
| 68 | Edward C. Bertram | 11 | Grand Son | — | Maryland |
| 69 | Emil C. Borton | 33 | Son | Conductor | Maryland |
| 70 | Charles E. Borton | 29 | Son | Salesman | Maryland |
| 71 | Lena D. Borton | 26 | Daughter | — | Maryland |
| 72 | Milton J. Borton | 23 | Son | Mechanic | Maryland |
| 73 | Isaac S. Swavely | 70 | Head | Painter | Maryland |
| 74 | Mary E. Swavely | 70 | Wife-H | — | Maryland |
| 75 | Clifford L. Ness | 31 | Head | Salesman | Georgia |
| 76 | Daisy M. Ness | 32 | Wife-H | Repairer | Maryland |
| 77 | Clifford Jr. Ness | 4 | Son | — | Maryland |
| 78 | Anthony S. Ness | 3 | Son | — | New York |
| 79 | Randolph D. Ness | 2 | Son | — | Maryland |
| 80 | Rebecca J. Ness | 0 | Daughter | — | Maryland |
| 81 | Lee B. Johnson | 40 | Head | Salesman | Maryland |
| 82 | Florence L. Johnson | 37 | Wife-H | — | Maryland |
| 83 | Lee Jr. Johnson | 8 | Son | — | Maryland |
| 84 | Lillian S. Johnson | 15 | Daughter | — | Maryland |
| 85 | Gilbert N. Johnson | 3 | Son | — | Maryland |
| 86 | Paul E. Cahill | 34 | Head | Examiner | Maryland |
| 87 | Mamie E. Cahill | 33 | Wife-H | — | Maryland |
| 88 | Mary Lou Cahill | 3 | Daughter | — | Maryland |
| 89 | James Jos. Cahill | 27 | Brother | Chauffeur | Maryland |
| 90 | Helda Cahill | 24 | Sister-In-Law | — | Maryland |
| 91 | Charles R. Gorman | 60 | Head | Painter | Maryland |
| 92 | Annie S. Gorman | 59 | Wife-H | — | Maryland |
| 93 | Edward C. Gorman | 35 | Son | Cable Splicer | Maryland |
| 94 | Charles R. Garrett | 37 | Head | Chauffeur | Maryland |
| 95 | Annetta N. Garrett | 24 | Wife-H | — | Maryland |
| 96 | John C. Garrett | 10 | Son | — | Maryland |
| 97 | Marie E. Garrett | 4 | Daughter | — | Maryland |
| 98 | Michael Di Pasquale | 70 | Father-In-Law | Tailor | Italy |
Related Census Records
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)