RK
Robert Kelly — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Robert Kelly across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Kelly |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Waiter |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 780 |
| Highest Grade | No 4-H |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Waiter |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1918 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Kelly | Daughter | — | 16 | ~1924 |
| John Kelly | Head | — | 50 | ~1890 |
| Thomas Mcvay | Other | — | 46 | ~1894 |
| John Kelly | Son | — | 23 | ~1917 |
| George Kelly | Son | — | 20 | ~1920 |
| Robert Kelly | Son | — | 22 | ~1918 |
| Matilda Kelly | Spouse | — | 49 | ~1891 |
Census Appearances
1920
San Francisco, …
Son, age 1
San Francisco, California · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 12
San Francisco, California · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelly |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 22
San-Francisco-County, California · implied b. ~1918 — 7 household members
| Surname | Kelly |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Waiter |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 780 |
| Highest Grade | No 4-H |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Kelly across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Kelly (~0.92 confidence) and father John Kelly (~0.92 confidence) and mother Matilda Kelly (~0.92 confidence) and father Austin Kelly (~0.92 confidence) and mother Ella Kelly (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Kelly
b. ~1890
Source father
● Household
· direct · ~0.92
Father
John Kelly
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Matilda Kelly
b. ~1891
Source mother
● Household
· direct · ~0.92
Father
Austin Kelly
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Ella Kelly
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Kelly
Son · 1940 · age 22 · b. ~1918 · California
★ You are viewing this record
Sibling
Dorothy Kelly
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Kelly
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Kelly
Sibling · 1940 · age 20
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 — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
34 people indexed on this census page (nara:1940:m-t0627-00300-00835)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 2 | Frank Tivic | 52 | Head | Proprietor | Italy |
| 3 | Maria Tivic | 58 | Wife | Cook | Italy |
| 4 | John Tivic | 24 | Son | Bartender | California |
| 5 | Thomas Ward | 45 | Lodger | Boat Builder | Eire |
| 6 | Luka Vujovich | 59 | Lodger | Watchman | Yugoslavia |
| 7 | Jose Oliveira | 52 | Lodger | Longshoreman | Portugal |
| 8 | Nelly Giampolis | 39 | Lodger | Laborer | Italy |
| 9 | Walter Hoffman | 54 | Lodger | Steam Car Repairer | Germany |
| 10 | Anna O. Hoffman | 41 | Lodger | — | Texas |
| 11 | Malachy Coffee | 67 | Lodger | — | Eire |
| 13 | Anton Genadopoulos | 45 | Head | Laborer | Greece |
| 14 | Josephine Genadopoulos | 41 | Wife | — | California |
| 15 | John J. Kelly | 50 | Head | Blacksmith | California |
| 16 | Matilda W. Kelly | 49 | Wife | — | California |
| 17 | John Jr. Kelly | 23 | Son | Office Clerk | California |
| 18 | Robert W. Kelly THIS PERSON | 22 | Son | Waiter | California |
| 19 | George H. Kelly | 20 | Son | Helper | California |
| 20 | Dorothy A. Kelly | 16 | Daughter | — | California |
| 21 | Thomas F. Mcvay | 46 | Lodger | Car Loader | California |
| 23 | William Trocherno | 64 | Head | Dishwasher | Italy |
| 24 | Ivan Askins | 52 | Partner | Laborer | Nebraska |
| 25 | Teresa Fippo | 67 | Head | — | Argentina |
| 26 | Mike Buttitta | 58 | Lodger | Baker | Italy |
| 27 | Frank Rivello | 65 | Lodger | Laborer | Italy |
| 28 | Pete Nori | 53 | Lodger | Laborer | Italy |
| 29 | John Bianchini | 58 | Lodger | Furniture Helper | Italy |
| 30 | Lisa Del Piva | 50 | Head | Sewing | Italy |
| 31 | Giovanni Reborio | 63 | Head | — | Italy |
| 33 | George Caligari | 29 | Head | Stock Clerk | California |
| 34 | Mary Caligari | 22 | Wife | — | California |
| 35 | Georgette Caligari | 3 | Daughter | — | California |
| 37 | David J. Murphy | 56 | Head | Porter | Washington |
| 38 | Maria Vidmar | 60 | Head | — | Yugoslavia |
| 39 | Frank Vidmar | 36 | Son | Street Laborer | California |
Pedigree Summary
Robert + 3 siblings
Gen 1 · 5 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)