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Robert Lyons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Robert Lyons across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Lyons |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Downey (city) |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Downey City |
| Est. Birth Year | ~1925 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Richard Lyons | Son | — | 17 | ~1923 |
| Barbara Lyons | Daughter | — | 5 | ~1935 |
| Dorothy Lyons | Daughter | — | 13 | ~1927 |
| Barbara Lyons | Spouse | — | 46 | ~1894 |
| Thomas Lyons | Son | — | 7 | ~1933 |
| Robert Lyons | Son | — | 15 | ~1925 |
| William Lyons | Head | — | 48 | ~1892 |
| Betty Lyons | Daughter | — | 3 | ~1937 |
| Mary Lyons | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Los Angeles, …
Son, age 5
Los Angeles, California · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Son, age 15
Los-Angeles-County, California · implied b. ~1925 — 9 household members
| Surname | Lyons |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Downey (city) |
| 1935 Residence (County) | Los Angeles |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 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 Lyons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Lyons
Son · 1940 · age 15 · b. ~1925 · California
★ You are viewing this record
Sibling
Richard Lyons
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Lyons
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Lyons
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Lyons
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Lyons
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Lyons
Sibling · 1940 · age 11
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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00226-00363)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thomas J Cobb | 5 | son | — | California |
| 42 | Kenneth C. Strout | 31 | head | Shipper Clerk | New York |
| 43 | Crystal E Strout | 28 | wife | — | California |
| 44 | Penelope Strout | 0 | daughter | — | California |
| 45 | Willis I. Mason | 37 | head | Airplane Mechanic | California |
| 46 | Esther E. Mason | 27 | wife | — | Kansas |
| 47 | Raymond N. Bogue | 30 | head | Lineman | California |
| 48 | Rurla Bogue | 30 | wife | — | Kentucky |
| 49 | Cordie L. Allgood | 39 | head | Airplane Mechanic | Alabama |
| 50 | Mary E Allgood | 44 | wife | — | North Carolina |
| 51 | Bertha Lowe | 62 | head | — | Iowa |
| 52 | Floyd A. Lowe | 23 | son | Precision Grinder | California |
| 53 | Edna Lowe | 20 | daughter | — | California |
| 54 | Flora Tootevin | 77 | head | Farmer | Illinois |
| 55 | Charles F. Berry | 78 | brother | Maker | Vermont |
| 56 | Grey M Kidmore | 55 | head | Proprietor | California |
| 57 | Helen Kidmore | 51 | wife | — | New York |
| 58 | William Lyons | 48 | head | Truck Driver | California |
| 59 | Barbara Lyons | 46 | wife | — | California |
| 60 | Richard Lyons | 17 | son | — | California |
| 61 | Robert Lyons THIS PERSON | 15 | son | — | California |
| 62 | Dorothy Lyons | 13 | daughter | — | California |
| 63 | Mary Lyons | 11 | daughter | — | California |
| 64 | Thomas Pat Lyons | 7 | son | — | California |
| 65 | Barbara Lyons | 5 | daughter | — | California |
| 66 | Betty Lyons | 3 | daughter | — | California |
| 67 | Augusta R Reallor | 35 | head | Farm Foreman | France |
| 68 | Stella Reallor | 30 | wife | — | Canada |
| 69 | Augusta R. Jr. Reallor | 7 | son | — | California |
| 70 | Walter C. Fluke | 45 | head | Foreman Carpenter | Michigan |
| 71 | Ruth A. Fluke | 43 | wife | — | Montana |
| 72 | Charlene R. Fluke | 11 | daughter | — | California |
| 73 | Chris Fluke | 5 | daughter | — | California |
| 74 | Alfred A. Olmstead | 33 | lodger | Carpenter | Ohio |
| 75 | Harvey Rogers | 39 | head | Spot Welder | Colorado |
| 76 | Manett Rogers | 34 | wife | — | Texas |
| 77 | Donna Lou Rogers | 10 | daughter | — | California |
| 78 | Edward R. Hull | 58 | head | Yacht Captain | California |
| 79 | Chloe Hull | 64 | wife | — | Kansas |
| 80 | Thomas G Pang | 55 | head | Farmer | Indiana |
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)