WJ
Wm Johnson — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Wm Johnson across the 1900, 1910 and 1920 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a head (b.~1850), then head of a 3-person household.
Age 50
b. ~1850
Male
Head
Born: Maryland
Married
1900 Census Record Details
| Census Year | 1900 |
| Location | Baltimore, Maryland |
| Surname | Johnson |
| Given Name | Wm H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Maryland |
| Birth Month | Oct |
| Birth Year | 1850 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Quarryman |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Quarryman |
| Township / Ward | Part Of 1St Precinct 8 District |
| Est. Birth Year | ~1850 |
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.
3 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to Wm | Age | Birth yr |
|---|---|---|---|---|
| Wm Johnson | Head | — | 50 | ~1850 |
| Elmira Johnson | Daughter | — | 13 | ~1887 |
| Margaret Johnson | Spouse | — | 50 | ~1850 |
Census Appearances
1900
Baltimore, Maryland
Head, age 50
Baltimore, Maryland · implied b. ~1850 — 3 household members
| Surname | Johnson |
| Given Name | Wm H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Maryland |
| Birth Month | Oct |
| Birth Year | 1850 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Quarryman |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1910
Baltimore, Maryland
Head, age 60
Baltimore, Maryland · implied b. ~1850 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Farm |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Baltimore, Maryland
Head, age 69
Baltimore, Maryland · implied b. ~1851 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | William S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Labour |
| Industry | Fert Co |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Home Owned/Rented | R |
| 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 Wm Johnson across 3 US Census years (1900, 1910 and 1920) in Baltimore, Maryland, using XGBoost record linkage.
Show:
This person
Anchor record
Wm Johnson
Head · 1900 · age 50 · b. ~1850 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1900 US Federal Census — Baltimore, Maryland
Open full size
1900 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu606unit:0780)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ella M Turnbaugh | 8 | Daughter | — | Maryland |
| 2 | Ada G Turnbaugh | 5 | Daughter | — | Maryland |
| 3 | Wm H Johnson THIS PERSON | 50 | Head | Quarryman | Maryland |
| 4 | Margaret A Johnson | 50 | Wife | — | Maryland |
| 5 | Elmira R Johnson | 12 | Daughter | At School | Maryland |
| 6 | Charles T Poe | 43 | Head | Blacksmith | Maryland |
| 7 | Ida V Poe | 41 | Wife | — | Maryland |
| 8 | Mahlon W Poe | 17 | Son | Day Laborer | Maryland |
| 9 | Bisley L Poe | 13 | Son | At School | Maryland |
| 10 | Roland L Poe | 11 | Son | At School | Maryland |
| 11 | James W Poe | 7 | Son | — | Maryland |
| 12 | Agnes M Poe | 5 | Daughter | — | Maryland |
| 13 | Mary D Poe | 3 | Daughter | — | Maryland |
| 14 | John A B Poe | None | Son | — | Maryland |
| 15 | Patrick Scally | 53 | Head | Store Saloon Keeper | Ireland |
| 16 | Annie Scally | 50 | Wife | — | Ireland |
| 17 | Patrick B Scally | 23 | Son | Telegraph Operator | Maryland |
| 18 | Gertie R Scally | 20 | Daughter | — | Maryland |
| 19 | Lawrence L Scally | 19 | Son | Telegraph Operator | Maryland |
| 20 | William T Scally | 16 | Son | At School | Maryland |
| 21 | Francis L Scally | 15 | Daughter | At School | Maryland |
| 22 | Tracey G Scally | 14 | Daughter | At School | Maryland |
| 23 | John Mcdermott | 31 | Head | Saloon Keeper | Maryland |
| 24 | Mary Mcdermott | 19 | Wife | — | Maryland |
| 25 | Francis W Mcdermott | 2 | Son | — | Maryland |
| 26 | Francis J Jordan | 23 | Boarder | Quarryman | Maryland |
| 27 | Cornelius Lyons | 26 | Boarder | Quarryman | Ireland |
| 28 | Michael Ryan | 28 | Boarder | Quarryman | Ireland |
| 29 | Patrick Owens | 76 | Head | — | Ireland |
| 30 | Catherine Owens | 71 | Wife | — | Ireland |
| 31 | Mary Owens | 38 | Daughter | — | Maryland |
| 32 | Margaret J Owens | 21 | Daughter | — | Maryland |
| 33 | John Owens | 36 | Son | Blacksmith | Maryland |
| 34 | Thomas W Owens | 31 | Son | Quarryman | Maryland |
| 35 | Patrick Horan | 53 | Head | — | Ireland |
| 36 | Michael J Horan | 22 | Son | Quarryman | Maryland |
| 37 | John J Horan | 21 | Son | Quarryman | Maryland |
| 38 | Patrick N Horan | 19 | Son | Day Laborer | Maryland |
| 39 | Sarah M Horan | 15 | Daughter | At School | Maryland |
| 40 | James Gilloody | 26 | Boarder | Day Laborer | Ireland |
| 41 | James Lant | 22 | Boarder | Day Laborer | Ireland |
| 42 | Thomas Daily | 29 | Head | Quarryman | Ireland |
| 43 | Katie Mrs Daily | 25 | Wife | — | Ireland |
| 44 | John P Daily | 2 | Son | — | Maryland |
| 45 | Patrick Daily | 1 | Son | — | Maryland |
| 46 | Thomas Mcgraw | 39 | Head | Quarryman | Maryland |
| 47 | Mary Mcgraw | 29 | Wife | — | Maryland |
| 48 | James W Mcgraw | 14 | Son | At School | Maryland |
| 49 | Margaret M Mcgraw | 12 | Daughter | At School | Maryland |
| 50 | Gerald T Mcgraw | 11 | Son | At School | Maryland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)