RA
Robert Alexander — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Robert Alexander across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Leon & Arthur — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Laborer |
| Industry | Shipyard |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 900 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Laborer |
| Township / Ward | New York City |
| Est. Birth Year | ~1916 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Martha Alexander | Daughter | — | 22 | ~1918 |
| Elizabeth Alexander | Daughter | — | 20 | ~1920 |
| Arthur Alexander | Head | — | 50 | ~1890 |
| Elizabeth Russell | Other | — | 78 | ~1862 |
| Robert Alexander | Son | — | 24 | ~1916 |
| Elizabeth Alexander | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Kings, New …
Son, age 2
Kings, New York · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 13
Kings, New York · implied b. ~1917 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Student |
| Industry | School |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 24
Kings-County, New York · implied b. ~1916 — 6 household members
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | Laborer |
| Industry | Shipyard |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 900 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Alexander across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Leon Alexander (~0.92 confidence) and father Arthur Alexander (~0.92 confidence) and mother Elizabeth Alexander (~0.92 confidence) and mother Rachel Alexander (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Leon Alexander
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Arthur Alexander
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Alexander
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Rachel Alexander
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Alexander
Son · 1940 · age 24 · b. ~1916 · New York
★ You are viewing this record
Sibling
Martha Alexander
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Alexander
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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02598-00254)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Isiah Griffith | 42 | Head | Porter | Br. West Indies |
| 42 | Selma Griffith | 36 | Wife | — | Br. West Indies |
| 43 | Eunice Griffith | 11 | Daughter | — | New York |
| 44 | John Washington | 39 | Head | Laborer | Maryland |
| 45 | Martha Washington | 40 | Wife | Domestic | No. Carolina |
| 46 | Geraldine Homer | 19 | Step-daughter | — | No. Carolina |
| 47 | Dorothy Homer | 17 | Step-daughter | — | No. Carolina |
| 48 | James Steinmer | 30 | Head | Laborer | No. Carolina |
| 49 | Minnie Steinmer | 29 | Wife | — | Florida |
| 50 | Arthur Alexander | 50 | Head | Laborer | New York |
| 51 | Elizabeth Alexander | 50 | Wife | — | Illinois |
| 52 | Robert Alexander THIS PERSON | 24 | Son | Laborer | New York |
| 53 | Martha Alexander | 22 | Daughter | Stenographer | New York |
| 54 | Elizabeth Alexander | 20 | Daughter | Assembler | New York |
| 55 | Elizabeth Russell | 78 | Mother-in-law | — | Canada-English |
| 56 | Rose Emanuel | 39 | Head | — | Virginia |
| 57 | Abraham Emanuel | 17 | Son | — | Virginia |
| 58 | Charles Pennell | 30 | Lodger | Laborer | No. Carolina |
| 59 | Joseph Williams | 59 | Head | Finisher | Br. West Indies |
| 60 | Gwendolyn Williams | 19 | Daughter | Finisher | Mass. |
| 61 | Charles Wilkens | 43 | Head | Watchman | Br. West Indies |
| 62 | Eugenia Wilkens | 43 | Wife | — | Br. West Indies |
| 63 | Charles Jr. Wilkens | 24 | Son | Elevator Operator | New York |
| 64 | Arline Wilkens | 16 | Daughter | — | New York |
| 65 | James Wilkens | 15 | Son | — | New York |
| 66 | Thomas Wilkens | 7 | Son | — | New York |
| 67 | Pinkey Mitchell | 22 | Lodger | Domestic | New York |
| 68 | Thomas Arrington | 28 | Lodger | Laborer | New York |
| 69 | Morris Simonsky | 50 | Head | House Painter | Russia |
| 70 | Fannie Simonsky | 45 | Wife | — | Russia |
| 71 | Hyman Simonsky | 27 | Son | Helper | Russia |
| 72 | Clifton Lee | 34 | Head | Foreman | Virginia |
| 73 | Martha Lee | 35 | Wife | — | Virginia |
| 74 | Dora Lee | 9 | Daughter | — | New York |
| 75 | Howard Green | 28 | Lodger | Wrecker | Louisiana |
| 76 | Hettie Green | 26 | Lodger | — | Virginia |
| 77 | Ruth A. Parker | 59 | Lodger | — | Virginia |
| 78 | Eloise Vingman | 33 | Lodger | Helper | Virginia |
| 79 | Ruth Brightwell | 8 | Lodger | — | D.C. |
| 80 | Charles Murray | 44 | Head | Helper | New York |
Pedigree Summary
Robert + 2 siblings
Gen 1 · 4 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)