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Isaac Johnson — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Isaac Johnson across the 1910, 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 5-person household.
Age 30
b. ~1880
Male
Head
Born: Maryland
Widowed
1910 Census Record Details
| Census Year | 1910 |
| Location | Baltimore, Maryland |
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Children Born | 0 |
| Children Living | 0 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Street work |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1880 |
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.
5 people recorded at the same address in the 1910 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Annie Johnson | Daughter | — | 20 | ~1890 |
| Isaac Johnson | Head | — | 30 | ~1880 |
| Clarence Johnson | Son | — | 20 | ~1890 |
| George Johnson | Son | — | 20 | ~1890 |
| Robert Johnson | Son | — | 8 | ~1902 |
Census Appearances
1910
Baltimore, Maryland
Head, age 30
Baltimore, Maryland · implied b. ~1880 — 5 household members
| Surname | Johnson |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Children Born | 0 |
| Children Living | 0 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Street work |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Baltimore, Maryland
Head, age 40
Baltimore, Maryland · implied b. ~1880 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isiah |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Street Work |
| 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 48
Baltimore, Maryland · implied b. ~1882 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Isiah |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 22 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Elec. Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 28 |
| Radio Set | R |
| 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 Johnson across 3 US Census years (1910, 1920 and 1930) in Baltimore, Maryland, using XGBoost record linkage.
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This person
Anchor record
Isaac Johnson
Head · 1910 · age 30 · b. ~1880 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — Baltimore, Maryland
Open full size
1910 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po556unit:1013)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ada A Wilson | 36 | Boarder | Laundress | Maryland |
| 2 | Annie B Jones | 30 | Head | Street Work | Maryland |
| 3 | Martha L Jones | 31 | Wife | None | Maryland |
| 4 | John E Jones | 9 | Son | None | Maryland |
| 5 | William E Jones | 10 | Son | None | Maryland |
| 6 | Annie E Jones | 36 | Daughter | Laundress | Maryland |
| 7 | Edward J Jones | 31 | Son in law | None | Maryland |
| 8 | George Jones | 14 | Son | Cart | Maryland |
| 9 | Clarence Jones | 8 | Son | None | Maryland |
| 10 | Lizzie Hopkins | 50 | Head | Laundress | Maryland |
| 11 | Florence Hopkins | 15 | Daughter | None | Maryland |
| 12 | Isaac Williams | 60 | Head | Laborer | Virginia |
| 13 | Isaac Williams | 22 | Son | None | Virginia |
| 14 | Marie Williams | 20 | Daughter in law | None | Virginia |
| 15 | Isaac Williams | 25 | Grandson | None | Virginia |
| 16 | Isaac Williams | 20 | Head | Servant | Virginia |
| 17 | Margaret Brown | 36 | Head | Servant | Virginia |
| 18 | Violet Brown | 16 | Daughter | Servant | Virginia |
| 19 | Maybelle Brown | 14 | Daughter | Driver | Virginia |
| 20 | Fred Brown | 11 | Son | None | Virginia |
| 21 | Theodore Brown | 3 | Son | Janitor | Virginia |
| 22 | Alice Brown | 1 | Daughter | Laundress | Virginia |
| 23 | Fred Brown | 1 | Son | None | Virginia |
| 24 | James A Brown | 45 | Head | None | Maryland |
| 25 | Mary E Brown | 43 | Wife | Servant | Maryland |
| 26 | William Brown | 25 | Son | Laborer | Maryland |
| 27 | Annie Brown | 25 | Daughter | Servant | Maryland |
| 28 | James Brown | 2 | Son | None | Maryland |
| 29 | George Brown | 1 | Son | None | Maryland |
| 30 | George W Brown | 27 | Head | Laborer | Maryland |
| 31 | Eliza S Brown | 26 | Wife | None | Maryland |
| 32 | Charles W Brown | 5 | Son | None | Maryland |
| 33 | Daughter Brown | 2 | — | None | Maryland |
| 34 | Charles Reed | 30 | Head | Cook | Maryland |
| 35 | Josephine Reed | 26 | Wife | Servant | Maryland |
| 36 | William Reed | 23 | Son | Butler | Maryland |
| 37 | Alice E Reed | 2 | Daughter | None | Maryland |
| 38 | William H Reed | 14 | Son | Porter | Maryland |
| 39 | Joseph R Reed | 9 | Son | None | Maryland |
| 40 | Annie L Reed | 5 | Daughter | None | Maryland |
| 41 | Son Reed | 3 | — | None | Maryland |
| 42 | Isaac Johnson THIS PERSON | 30 | Head | Laborer | Maryland |
| 43 | Robert Johnson | 8 | Son | None | Maryland |
| 44 | George Johnson | 20 | Son | Laborer | Maryland |
| 45 | Annie Johnson | 20 | Daughter | None | Maryland |
| 46 | Clarence Johnson | 20 | Son | None | Maryland |
| 47 | William Johnson | 30 | Head | Laundress | Maryland |
| 48 | Lillian Johnson | 31 | Wife | Laborer | Maryland |
| 49 | Clarence Johnson | 24 | Son | Laundress | Maryland |
| 50 | Annie Johnson | 17 | Daughter | Cook | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)