RM
Robert Mclean — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Robert Mclean across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | McLean |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1927 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| John Mclean | Head | — | 37 | ~1903 |
| Herbert Mclean | Son | — | 11 | ~1929 |
| Patricia Mclean | Daughter | — | 1 | ~1939 |
| Margaret Hackett | Other | — | 66 | ~1874 |
| Marilyn Mclean | Daughter | — | 5 | ~1935 |
| Helen Mclean | Daughter | — | 3 | ~1937 |
| Donnelle Mason | Other | — | 24 | ~1916 |
| Gertrude Mclean | Spouse | — | 38 | ~1902 |
| Robert Mclean | Son | — | 13 | ~1927 |
| William Mclean | Son | — | 9 | ~1931 |
Census Appearances
1930
Los Angeles, …
Other, age 3
Los Angeles, California · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLean |
| Given Name | Robert R. |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Utah |
| Mother's Birthplace | Canada |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Los-Angeles-County, California
Son, age 13
Los-Angeles-County, California · implied b. ~1927 — 10 household members
| Surname | McLean |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Mclean across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Mclean
Son · 1940 · age 13 · b. ~1927 · California
★ You are viewing this record
Sibling
Herbert Mclean
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Mclean
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Mclean
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mclean
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mclean
Sibling · 1940 · age 9
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
38 people indexed on this census page (nara:1940:m-t0627-00409-00029)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Betty L Brockway | 12 | daughter | — | California |
| 42 | George E Trimble | 28 | servant | General Maid | Canada-English |
| 43 | Joseph Rosenfield | 57 | head | Attorney | Colorado |
| 44 | Mollie K Rosenfield | 51 | wife | — | Oregon |
| 45 | Jerome S Rosenfield | 23 | son | — | California |
| 46 | Ascension Mendoza | 30 | servant | General Maid | Mexico |
| 47 | Marshall W Parizette | 31 | head | Salesman | California |
| 48 | Dorothy M Parizette | 30 | wife | — | Hawaii |
| 49 | Alfred J Enright | 37 | head | Physician | Illinois |
| 50 | Jean D Enright | 36 | wife | Nurse | California |
| 51 | Karen Enright | 5 | daughter | — | California |
| 52 | Robert Enright | 2 | son | — | California |
| 53 | Eleanor D Duncan | 37 | servant | General Maid | Tennessee |
| 54 | Gordon Mordecai | 43 | head | General Accountant | Canada-English |
| 55 | Anita P Mordecai | 42 | wife | — | California |
| 56 | Betty J Cullvert | 20 | niece | Clerk | Canada-English |
| 58 | Joseph Bernard | 48 | head | — | California |
| 59 | Fern E Bernard | 40 | wife | Telephone Operator | California |
| 60 | Beverly Bernard | 9 | daughter | — | California |
| 62 | Walter M Aitken | 37 | head | Accountant | Canada-English |
| 63 | Nellie S Aitken | 39 | wife | Secretary | Iowa |
| 64 | Wallace Aitken | 6 | son | — | California |
| 65 | Hugh Aitken | 4 | son | — | California |
| 66 | Anna M Goulley | 19 | servant | General Maid | Colorado |
| 67 | John W Reavis | 38 | head | Attorney | Iowa |
| 68 | Harriet Reavis | 35 | wife | — | Nebraska |
| 69 | John E Jr Mclean | 37 | head | Vice President | Washington |
| 70 | Gertrude C Mclean | 38 | wife | Clerk | Michigan |
| 71 | Robert Mclean THIS PERSON | 13 | son | — | Washington |
| 72 | Herbert E Mclean | 11 | son | — | Washington |
| 73 | William P Mclean | 9 | son | — | Washington |
| 74 | Marilyn Mclean | 5 | daughter | — | California |
| 75 | Helen Mclean | 3 | daughter | — | California |
| 76 | Patricia Mclean | 1 | daughter | — | California |
| 77 | Margaret Hackett | 66 | housekeeper | Housekeeper | England |
| 78 | Donnelle Mason | 24 | lodger | Clerk | Washington |
| 79 | Andrew Kaufman | 33 | head | Executive Secretary | New York |
| 80 | Dorothy Kaufman | 30 | wife | — | New York |
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)