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Robert Wolf — 1900 US Census Record
Model Tree available1900 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Robert Wolf across the 1900, 1910 and 1920 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents Henry & John — first a son (b.~1899), then head of a 3-person household.
Age 1
b. ~1899
Male
Son
Born: Maryland
Single
1900 Census Record Details
| Census Year | 1900 |
| Location | Baltimore, Maryland |
| Surname | Wolf |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Birth Month | May |
| Birth Year | 1899 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Second Precinct |
| Est. Birth Year | ~1899 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Wolf | Son | — | 1 | ~1899 |
| John Wolf | Head | — | 24 | ~1876 |
| Mary Wolf | Spouse | — | 20 | ~1880 |
Census Appearances
1900
Baltimore, Maryland
Son, age 1
Baltimore, Maryland · implied b. ~1899 — 3 household members
| Surname | Wolf |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Birth Month | May |
| Birth Year | 1899 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1910
Baltimore, Maryland
Son, age 9
Baltimore, Maryland · implied b. ~1901 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolf |
| Given Name | Ross |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
York, Pennsylvania
Son, age 18
York, Pennsylvania · implied b. ~1902 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolf |
| Given Name | Ross T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Insulator W. |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | 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 Robert Wolf across 3 US Census years (1900, 1910 and 1920) in 2 locations, using XGBoost record linkage. Identified parents: father Henry Wolf (~0.92 confidence) and father John Wolf (~0.92 confidence) and father Noah Wolf (~0.92 confidence) and mother Effie Wolf (~0.92 confidence) and mother Ella Wolf (~0.92 confidence) and mother Mary Wolf (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Henry Wolf
b. ~1859
Source father
● Household
· direct · ~0.92
Father
John Wolf
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Noah Wolf
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Effie Wolf
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Ella Wolf
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Mary Wolf
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Wolf
Son · 1900 · age 1 · b. ~1899 · 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:1900:12thcensusofpopu609unit:0159)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William Horner | 60 | Head | Carpenter | Maryland |
| 52 | Katie Horner | 45 | Wife | — | Maryland |
| 53 | Bella Horner | 19 | Daughter | Dressmaker | Maryland |
| 54 | Albert Horner | 23 | Son | Shirt Cutter | Maryland |
| 55 | Charles Horner | 18 | Son | Opr. Shirt Fcty. | Maryland |
| 56 | Harry Horner | 11 | Son | At School | Maryland |
| 57 | Michael Sironis | 60 | Head | Laborer | Ireland |
| 58 | Rose Sironis | 60 | Wife | — | Ireland |
| 59 | Michael Sironis | 36 | Son | Driver | Maryland |
| 60 | Joseph Sironis | 10 | G-son | At School | Maryland |
| 61 | Edward Sironis | 4 | G-son | At School | Maryland |
| 62 | Thomas Sironis | 9 | G-son | At School | Maryland |
| 63 | Israel Herman | 30 | Head | Tailor - Custom | Russia |
| 64 | Dora Herman | 28 | Wife | — | Russia |
| 65 | Benjamin Herman | 8 | Son | At School | Maryland |
| 66 | Louis Herman | 6 | Son | At School | Maryland |
| 67 | Nathan Herman | 4 | Son | — | Maryland |
| 68 | Lena Herman | 2 | Daughter | — | Maryland |
| 69 | Harry Blumenthal | 20 | Boarder | Tailor - Custom | Russia |
| 70 | Anna Riar | 44 | Head | — | Maryland |
| 71 | Frederick Riar | 26 | Son | Drug Clerk | Maryland |
| 72 | William Riar | 19 | Son | Tailor - Custom | Maryland |
| 73 | John A. Wolf | 23 | Head | Porter | Maryland |
| 74 | Mary Wolf | 20 | Wife | — | Maryland |
| 75 | Robert H. Wolf THIS PERSON | 1 | Son | — | Maryland |
| 76 | Elizabeth Simpson | 75 | Head | Landlady | Maryland |
| 77 | Samuel Berman | 42 | Head | Tailor - Pants | Russia |
| 78 | Goldie Berman | 42 | Wife | — | Russia |
| 79 | Morris Berman | 21 | Son | Tailor - Pants | Russia |
| 80 | Isert Berman | 18 | Son | Tailor - Pants | Russia |
| 81 | Rosa Berman | 12 | Daughter | At School | Russia |
| 82 | Abraham Berman | 11 | Son | At School | Russia |
| 83 | Ratchie Berman | 8 | Daughter | — | Russia |
| 84 | Wm Housman | 18 | Boarder | Tailor | Russia |
| 85 | Ruby Ferman | 26 | Boarder | Tailor | Russia |
| 86 | Jennie Kirsh | 21 | Boarder | Tailoress | Russia |
| 87 | Abram Rouchman | 38 | Boarder | — | Russia |
| 88 | Raphael Rachman | 48 | Head | Peddling - Notions | Maryland |
| 89 | Rimon Rachman | 19 | Son | — | Maryland |
| 90 | Kate Rachman | 14 | Daughter | — | Maryland |
| 91 | Cecilia Rachman | 13 | Daughter | — | Maryland |
| 92 | Rubie Rachman | 10 | Son | — | Maryland |
| 93 | Harry Grobber | 24 | Head | Tailoring - Coats | Russia |
| 94 | Harry Grobber | 6 | Son | — | Maryland |
| 95 | Rose Grobber | 4 | Daughter | — | Maryland |
| 96 | Israel Grobber | 2 | Son | — | Maryland |
| 97 | Ida Grobber | 0 | Daughter | — | Maryland |
| 98 | Harry Amon | 18 | Boarder | Capmaker | Russia |
| 99 | M. Baskovich | 24 | Head | Tailor | Germany |
| 100 | Baty Baskovich | 24 | Wife | — | Germany |
Pedigree Summary
Robert
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)