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Roger Williams — 1930 US Census Record
Linked across censuses1930 United States Federal Census · None, Maryland
Our Model Tree links this Roger Williams across the 1920 and 1930 US Censuses in Maryland (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 8-person household.
Age 15
b. ~1915
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | None, Maryland |
| Surname | Williams |
| Given Name | Roger |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Porter |
| Industry | Mission |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Porter |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1915 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Roger | Age | Birth yr |
|---|---|---|---|---|
| George Williams | Son | — | 13 | ~1917 |
| Sarah Williams | Daughter | — | 3 | ~1927 |
| Norman Williams | Son | — | 9 | ~1921 |
| Roger Williams | Son | — | 15 | ~1915 |
| Mary Williams | Daughter | — | 7 | ~1923 |
| Harry Williams | Son | — | 11 | ~1919 |
| Irene Williams | Spouse | — | 43 | ~1887 |
| George Williams | Head | — | 50 | ~1880 |
Census Appearances
1920
X, Maryland
Son, age 5
X, Maryland · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Roger |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
None, Maryland
Son, age 15
None, Maryland · implied b. ~1915 — 8 household members
| Surname | Williams |
| Given Name | Roger |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Porter |
| Industry | Mission |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Roger Williams across 2 US Census years (1920 and 1930) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Roger Williams
Son · 1930 · age 15 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
Mary Williams
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Williams
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Williams
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norman Williams
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Williams
Sibling · 1930 · age 11
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 — None, Maryland
Open full size
1930 US Federal Census — None, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus861unit:0108)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Millie Sheppard | 65 | Mother | — | Maryland |
| 2 | Margaret Smith | 35 | Roomer | Laundry | Virginia |
| 3 | Ramon Gross | 26 | Head | Porter | Maryland |
| 4 | Helen Gross | 24 | Wife | Day Work | Maryland |
| 5 | Ramon Jr. Gross | 4 | Son | — | Maryland |
| 6 | George Williams | 50 | Head | Laborer | Virginia |
| 7 | Irene Williams | 43 | Wife | Domestic | Maryland |
| 8 | Roger Williams THIS PERSON | 15 | Son | Porter | Maryland |
| 9 | George Williams | 13 | Son | — | Maryland |
| 10 | Harry Williams | 11 | Son | — | Maryland |
| 11 | Norman Williams | 9 | Son | — | Maryland |
| 12 | Mary Williams | 7 | Daughter | — | Maryland |
| 13 | Sarah Williams | 3 | Daughter | — | Maryland |
| 14 | James Harris | 38 | Head | Laborer | Virginia |
| 15 | Mary Harris | 35 | Wife | — | Virginia |
| 16 | Earl Harris | 11 | Son | — | Maryland |
| 17 | James Harris | 5 | Son | — | Maryland |
| 18 | Mary Harris | 1 | Daughter | — | Maryland |
| 19 | Sidney Lewis | 35 | Roomer | Laborer | Virginia |
| 20 | Jerome Dyer | 51 | Head | Laborer | Maryland |
| 21 | Katie Dyer | 50 | Wife | Laundress | Maryland |
| 22 | Anna Hunt | 44 | Head | Cook | Virginia |
| 23 | Edna Hunt | 19 | Daughter | Domestic | Maryland |
| 24 | Schuyler Hunt | 16 | Daughter | — | Virginia |
| 25 | Hubert Gate | 30 | Head | Porter | N. Carolina |
| 26 | Ella Gate | 22 | Wife | Dipper | Maryland |
| 27 | Jenny Spriggs | 45 | Mother-in-law | — | Maryland |
| 28 | Irene Jackson | 2 | Niece | — | Maryland |
| 29 | Herman Jackson | 3 | Nephew | — | Maryland |
| 30 | Thomas Willis | 55 | Roomer | Laborer | Virginia |
| 31 | Joseph Nelson | 44 | Head | Merchant | Maryland |
| 32 | John Muane | 54 | Half-brother | Plumber | Maryland |
| 33 | William Duffy | 48 | Brother-in-law | Social Investigator | Maryland |
| 34 | Margaret Duffy | 47 | Wife | — | Maryland |
| 35 | Carroll Duffy | 1 | Son | — | Maryland |
| 36 | William Derby | 65 | Head | Deceased | Maryland |
| 37 | Emma Derby | 35 | Wife | Domestic | Maryland |
| 38 | Massie Harris | 28 | Sister-in-law | — | Maryland |
| 39 | Mabel Washington | 27 | Niece | Laundress | Maryland |
| 40 | Ollie Hopkins | 21 | Nephew | Laborer | Maryland |
| 41 | Willard Harris | 12 | Nephew | — | Maryland |
| 42 | Mable Harris | 12 | Niece | — | Maryland |
| 43 | Richard Carter | 25 | Head | Cook | Washington D.C. |
| 44 | Christine Carter | 24 | Wife | — | Maryland |
| 45 | James Wharton | 45 | Roomer | Laborer | Virginia |
| 46 | Isaac Brown | 31 | Roomer | Truck Driver | Maryland |
| 47 | William Ross | 23 | Head | Laborer | Maryland |
| 48 | Lillian Ross | 23 | Wife | — | Maryland |
| 49 | Isaac Carin | 24 | Roomer | — | Washington D.C. |
| 50 | — | None | — | — | — |
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)