LM
Leonard Miller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Leonard Miller across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 12-person household.
Age 14
b. ~1926
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Miller |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Cambridge |
| Est. Birth Year | ~1926 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leonard | Age | Birth yr |
|---|---|---|---|---|
| Meta Miller | Daughter | — | 17 | ~1923 |
| Eleanor Miller | Daughter | — | 20 | ~1920 |
| Ursula Miller | Daughter | — | 25 | ~1915 |
| Rose Miller | Spouse | — | 42 | ~1898 |
| Cuthbert Miller | Son | — | 15 | ~1925 |
| Clarence Miller | Son | — | 21 | ~1919 |
| Lloyd Miller | Son | — | 19 | ~1921 |
| Allan Miller | Son | — | 6 | ~1934 |
| Melvin Miller | Son | — | 9 | ~1931 |
| Doris Miller | Daughter | — | 12 | ~1928 |
| Leonard Miller | Son | — | 14 | ~1926 |
| Allan Miller | Head | — | 45 | ~1895 |
Census Appearances
1930
Worcester, Massachusetts
Son, age 3
Worcester, Massachusetts · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Leo E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New York |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 14
Middlesex-County, Massachusetts · implied b. ~1926 — 12 household members
| Surname | Miller |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Middlesex |
| Class of Worker | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Leonard Miller across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Leonard Miller
Son · 1940 · age 14 · b. ~1926 · Massachusetts
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Sibling
Eleanor Miller
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cuthbert Miller
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allan Miller
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Meta Miller
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ursula Miller
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Miller
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Miller
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Miller
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Miller
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01683-00788)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Cogswell | 15 | Son | — | Massachusetts |
| 2 | Florence Cogswell | 13 | Daughter | — | Massachusetts |
| 3 | George Cogswell | 6 | Son | — | Massachusetts |
| 4 | Evelyn Cogswell | 4 | Daughter | — | Massachusetts |
| 5 | Charles Mason | 47 | Head | Laborer | Massachusetts |
| 6 | Ella Mason | 44 | Wife | — | Massachusetts |
| 7 | Alice Mason | 27 | Daughter | Packer | Massachusetts |
| 8 | Richard F. Mason | 22 | Son | New Worker | Massachusetts |
| 9 | Carol L. Mason | 16 | Daughter | — | Massachusetts |
| 10 | William A. Mason | 11 | Son | — | Massachusetts |
| 11 | Elizabeth Paris | 30 | Daughter | Household Aide | Massachusetts |
| 12 | Elizabeth E. Paris | 11 | G-Daughter | — | Massachusetts |
| 13 | Benjamin Paris | 9 | G-Son | — | Massachusetts |
| 15 | Thomas Rollins | 31 | Head | Longshoreman | Massachusetts |
| 16 | Daphne Rollins | 32 | Wife | — | Massachusetts |
| 17 | Allan Miller | 45 | Head | Paperhanger | British W. Indies |
| 18 | Rose Miller | 42 | Wife | — | British W. Indies |
| 19 | Ursula Miller | 25 | Daughter | General Work | Panama |
| 20 | Clarence Miller | 21 | Son | Truck Driver | Massachusetts |
| 21 | Eleanor Miller | 20 | Daughter | Housework | Massachusetts |
| 22 | Lloyd Miller | 19 | Son | Repair Man | Massachusetts |
| 23 | Cuthbert Miller | 15 | Son | — | Massachusetts |
| 24 | Leonard Miller THIS PERSON | 14 | Son | — | Massachusetts |
| 25 | Doris Miller | 12 | Daughter | — | Massachusetts |
| 26 | Melvin Miller | 9 | Son | — | Massachusetts |
| 27 | Allan Jr. Miller | 6 | Son | — | Massachusetts |
| 28 | Meta Miller | 17 | Daughter | — | Massachusetts |
| 29 | Samuel Fox | 49 | Head | Broommaker | British Guiana |
| 30 | Louisa A. Fox | 40 | Wife | — | British Guiana |
| 31 | James Souliaris | 41 | Head | — | Greece |
| 32 | Helen Souliaris | 16 | Daughter | — | Massachusetts |
| 33 | George Souliaris | 14 | Son | — | Massachusetts |
| 34 | Annette Souliaris | 6 | Daughter | — | Massachusetts |
| 35 | Christine Souliaris | 5 | Daughter | — | Massachusetts |
| 36 | Charles G. Robinson | 33 | Head | Laborer | Massachusetts |
| 37 | Lucy Robinson | 38 | Wife | — | Vermont |
| 38 | Frank Robinson | 10 | Son | — | Massachusetts |
| 39 | Charles Robinson | 5 | Son | — | Massachusetts |
| 40 | Harry Robinson | 3 | Son | — | Massachusetts |
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)