IB
Isaac Brown — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Prince George, Maryland
Our Model Tree links this Isaac Brown across the 1910, 1920 and 1930 US Censuses in Prince George, Maryland (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 8-person household.
Age 45
b. ~1885
Male
Head
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Prince George, Maryland |
| Surname | Brown |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 31 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Farmer |
| Township / Ward | Surratts Dist 9 Election |
| Est. Birth Year | ~1885 |
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 Isaac | Age | Birth yr |
|---|---|---|---|---|
| Thelma Brown | Daughter | — | 9 | ~1921 |
| Francis Brown | Daughter | — | 11 | ~1919 |
| Maudy Brown | Daughter | — | 14 | ~1916 |
| Isaac Brown | Head | — | 45 | ~1885 |
| Isabel Brown | Other | — | 35 | ~1895 |
| Johnnie Brown | Son | — | 5 | ~1925 |
| Isaac Brown | Son | — | 8 | ~1922 |
| George Brown | Son | — | 17 | ~1913 |
Census Appearances
1910
Charles, Maryland
Head, age 24
Charles, Maryland · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Maryland |
| Years Married | 7 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Saw Mill |
| Can Read | Yes |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Prince George, …
Head, age 35
Prince George, Maryland · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | General farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | No |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Prince George, …
Head, age 45
Prince George, Maryland · implied b. ~1885 — 8 household members
| Surname | Brown |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 31 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Veteran | No |
| 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 Isaac Brown across 3 US Census years (1910, 1920 and 1930) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Isaac Brown
Head · 1930 · age 45 · b. ~1885 · 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 — Prince George, Maryland
Open full size
1930 US Federal Census — Prince George, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus878unit:0019)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Lilian Smith | 12 | daughter | None | Maryland |
| 52 | Fred Smith | 10 | son | None | Maryland |
| 53 | John Smith | 7 | son | None | Maryland |
| 54 | Aubrey Smith | 6 | son | None | Maryland |
| 55 | Benjamin Smith | 5 | son | None | Maryland |
| 56 | Russell Smith | 2 | son | None | Maryland |
| 57 | Isaac Brown THIS PERSON | 45 | Head | Farmer | Maryland |
| 58 | Isabel Brown | 35 | wife-H | None | Maryland |
| 59 | George Brown | 17 | son | Laborer | Maryland |
| 60 | Maudy Brown | 14 | daughter | None | Maryland |
| 61 | Francis Brown | 11 | daughter | None | Maryland |
| 62 | Thelma Brown | 9 | daughter | None | Maryland |
| 63 | Isaac Brown | 8 | son | None | Maryland |
| 64 | Johnnie Brown | 5 | son | None | Maryland |
| 65 | James Wiseman | 59 | Head | Farmer | Maryland |
| 66 | Nellie Wiseman | 49 | wife-H | None | Maryland |
| 67 | Louis Wiseman | 19 | son | None | Maryland |
| 68 | Henry Wiseman | 13 | son | None | Maryland |
| 69 | Edna Wiseman | 12 | daughter | None | Maryland |
| 70 | Edgar Peters | 37 | Head | None | Maryland |
| 71 | Hattie Peters | 31 | wife-H | Caretaker | Maryland |
| 72 | Mae Peters | 12 | daughter | None | Maryland |
| 73 | Richard Peters | 8 | son | None | Maryland |
| 74 | John Peters | 6 | son | None | Maryland |
| 75 | James Thompson | 29 | Head | Farmer | Maryland |
| 76 | Nessie Thompson | 28 | wife-H | None | Maryland |
| 77 | Edith Thompson | 7 | daughter | None | Maryland |
| 78 | Hazel Thompson | 5 | daughter | None | Maryland |
| 79 | Roy Thompson | 3 | son | None | Maryland |
| 80 | James Thompson | 1 | son | None | Maryland |
| 81 | Hillary Jackson | 31 | Head | Inn Keeper | Maryland |
| 82 | Saughorne Roser | 64 | Head | Retired Painter | Virginia |
| 83 | Thomas White | 60 | Head | Farmer | Maryland |
| 84 | Mary White | 60 | wife-H | None | Maryland |
| 85 | Rae White | 23 | Head | Laborer | Maryland |
| 86 | Wilson White | 19 | wife-H | None | Maryland |
| 87 | Lawrence White | 1 | son | None | Maryland |
| 88 | Howell Tippett | 49 | Head | Carpenter | Maryland |
| 89 | Hallie Tippett | 38 | wife-H | None | Maryland |
| 90 | George Tippett | 19 | daughter | Wrapper Candy | Maryland |
| 91 | Nellie Tippett | 16 | daughter | Nurse Girl | Maryland |
| 92 | Suzie Tippett | 13 | daughter | None | Maryland |
| 93 | Catherine Tippett | 9 | daughter | None | Maryland |
| 94 | Jerry Tippett | 7 | son | None | Maryland |
| 95 | Emily Tippett | 5 | daughter | None | Maryland |
| 96 | Helen Tippett | 2 | daughter | None | Maryland |
| 97 | Morris Tippett | 1 | son | None | Maryland |
| 98 | Emma Baldwin | 67 | mother-in-law | None | Maryland |
| 99 | Phillip Sweeney | 70 | Head | Farmer | Maryland |
| 100 | Emma Sweeney | 68 | wife-H | None | 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)