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Robert Wolf — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Robert Wolf across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Eva & Eva — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Wolf |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | clerk |
| Industry | retail tobacco |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1100 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Clerk |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1917 |
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 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Wolf | Son | — | 23 | ~1917 |
| Ida Wolf | Daughter | — | 29 | ~1911 |
| Frederick Wolf | Son | — | 31 | ~1909 |
| Joseph Wolf | Son | — | 40 | ~1900 |
| Eva Wolf | Head | — | 64 | ~1876 |
Census Appearances
1920
None, Maryland
Son, age 2
None, Maryland · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolf |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 13
Baltimore, Maryland · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolf |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 23
Baltimore-City-County, Maryland · implied b. ~1917 — 5 household members
| Surname | Wolf |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | clerk |
| Industry | retail tobacco |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1100 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| 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 (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: mother Eva Wolf (~0.92 confidence) and mother Eva Wolf (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Eva Wolf
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Eva Wolf
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Wolf
Son · 1940 · age 23 · b. ~1917 · Maryland
★ You are viewing this record
Sibling
Frederick Wolf
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Wolf
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Wolf
Sibling · 1940 · age 40
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
1940 US Federal Census — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01535-00584)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry J Burt | 9 | Son | — | Maryland |
| 2 | Walter Burt | 4 | Son | — | Maryland |
| 3 | Eva A Wolf | 64 | Head | — | Maryland |
| 4 | Joseph L Wolf | 40 | Son | Chauffeur | Maryland |
| 5 | Frederick H Wolf | 31 | Son | Tester | Maryland |
| 6 | Robert L Wolf THIS PERSON | 23 | Son | Clerk | Maryland |
| 7 | Ida L Wolf | 29 | Daughter | Packer | Maryland |
| 8 | Helen E Welch | 39 | Head | Maker | Maryland |
| 9 | Helen E Welch | 10 | Daughter | — | Maryland |
| 10 | Charles Rebetock | 24 | Son in law | Mechanic | Lithuania |
| 11 | Helen E Rebetock | 17 | Daughter | — | Maryland |
| 12 | Bernard S Cuddy | 32 | Head | Special Delivery | Maryland |
| 13 | Virginia D Cuddy | 31 | Wife | — | Maryland |
| 14 | Virginia L Cuddy | 9 | Daughter | — | Maryland |
| 15 | Madeline A Cuddy | 68 | Mother | — | Virginia |
| 16 | John J Riggins | 28 | Head | Manager | Maryland |
| 17 | Grace E Riggins | 28 | Wife | — | Maryland |
| 18 | Nancy J Riggins | 2 | Daughter | — | Maryland |
| 19 | Albert J Riggins | 36 | Brother | Fireman | Maryland |
| 20 | Albert J Riggins | 69 | Father | — | Maryland |
| 21 | William L Haskins | 63 | Head | Fireman | Maryland |
| 22 | Gladys K Haskins | 37 | Wife | — | Maryland |
| 23 | Joan C Haskins | 7 | Daughter | — | Maryland |
| 24 | Rufus O Simmons | 61 | Head | Carpenter | Maryland |
| 25 | Hattie D Simmons | 49 | Wife | — | Maryland |
| 26 | Virginia Simmons | 23 | Daughter | Salesgirl | Maryland |
| 27 | Edward T Parks | 60 | Lodger | Carpenter | Maryland |
| 28 | Harry C Frouch | 68 | Head | Operator | Maryland |
| 29 | Bertha S Frouch | 63 | Wife | — | Maryland |
| 30 | Bessie Ruark | 45 | Sister in law | Office Worker | Maryland |
| 31 | John J Reynolds | 65 | Head | Fireman | Maryland |
| 32 | Effie M Reynolds | 49 | Wife | — | Virginia |
| 33 | Gordon J Reynolds | 25 | Son | Helper | Maryland |
| 34 | George H Reynolds | 55 | Brother | Janitor | Maryland |
| 35 | Victor Reynolds | 54 | Brother | Helper | Maryland |
| 36 | Margaret M Quinn | 40 | Head | Clerk | Maryland |
| 37 | Francis P Quinn | 45 | Brother | Marine Engineer | Maryland |
| 38 | John J Quinn | 43 | Brother | Postal Clerk | Maryland |
| 39 | Carmelite V Quinn | 38 | Sister | — | Maryland |
| 40 | Marcella Quinn | 36 | Sister | Checker | Maryland |
Related Census Records
Pedigree Summary
Robert + 3 siblings
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)