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Leo Miller — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Leo Miller across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Morris & Mollie — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Miller |
| Given Name | Leo J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Pharmacist |
| Industry | Retail Drug Store |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 30 |
| Highest Grade | C 3 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Pharmacist |
| Township / Ward | Malden City |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leo | Age | Birth yr |
|---|---|---|---|---|
| Leo Miller | Son | — | 23 | ~1917 |
| Mollie Miller | Spouse | — | 52 | ~1888 |
| Morris Miller | Head | — | 55 | ~1885 |
| Bernard Miller | Son | — | 21 | ~1919 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 3
Middlesex, Massachusetts · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Naturalization Status | Naturalized |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 13
Middlesex, Massachusetts · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Leon |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 23
Middlesex-County, Massachusetts · implied b. ~1917 — 4 household members
| Surname | Miller |
| Given Name | Leo J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Occupation | Pharmacist |
| Industry | Retail Drug Store |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 30 |
| Highest Grade | C 3 |
| 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 Leo Miller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Morris Miller (~0.92 confidence) and mother Mollie Miller (~0.92 confidence) and father Max Miller (~0.92 confidence) and father Max Miller (~0.92 confidence) and mother Celia Miller (~0.92 confidence) and mother Ida Miller (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Morris Miller
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Mollie Miller
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Max Miller
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Max Miller
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Celia Miller
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Ida Miller
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leo Miller
Son · 1940 · age 23 · b. ~1917 · Massachusetts
★ You are viewing this record
Sibling
Bernard Miller
Sibling · 1940 · age 21
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
40 people indexed on this census page (nara:1940:m-t0627-01609-00763)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gilbert, Frank M. Gilbert | 20 | Son | Floor Worker | Massachusetts |
| 2 | George L. Gilbert | 16 | Son | — | Massachusetts |
| 3 | Morris Miller | 55 | Head | Tailor | Austria |
| 4 | Mollie Miller | 52 | Wife | — | Austria |
| 5 | Leo J. Miller THIS PERSON | 23 | Son | Pharmacist | Massachusetts |
| 6 | Bernard Miller | 21 | Son | Clerk | Massachusetts |
| 7 | Abraham Jacobson | 57 | Head | — | Armenia |
| 8 | Sophie Jacobson | 50 | Wife | — | Armenia |
| 9 | Samuel Jacobson | 23 | Son | Cutter | Massachusetts |
| 10 | Pearl Jacobson | 23 | Daughter | Floor Lady | Massachusetts |
| 11 | Nathan Spector | 43 | Head | Leather Worker | Russia |
| 12 | Esther Spector | 39 | Wife | — | Russia |
| 13 | Milton Spector | 19 | Son | Salesman | Massachusetts |
| 14 | Sylvia Spector | 17 | Daughter | — | Massachusetts |
| 15 | Leon L. Spector | 9 | Son | — | Massachusetts |
| 16 | Walter C. Sherk | 26 | Head | Truck Driver | Massachusetts |
| 17 | Victoria B. Sherk | 21 | Wife | — | Massachusetts |
| 18 | Elizabeth L. Sherk | 3 | Daughter | — | Massachusetts |
| 19 | Walter C. Jr. Sherk | 2 | Son | — | Massachusetts |
| 20 | Walter Mallatt | 47 | Head | Laborer | Massachusetts |
| 21 | Agnes H. Mallatt | 37 | Wife | — | Scotland |
| 22 | Walter J. Mallatt | 14 | Son | — | Massachusetts |
| 23 | Frederick T. Mallatt | 12 | Son | — | Massachusetts |
| 24 | John A. Mallatt | 8 | Son | — | Massachusetts |
| 25 | Agnes C. Mallatt | 5 | Daughter | — | Massachusetts |
| 26 | Marion L. Mallatt | 0 | Daughter | — | Massachusetts |
| 27 | Elmer H. Morse | 27 | Head | Manager | Massachusetts |
| 28 | Genevieve R. Morse | 29 | Wife | — | Massachusetts |
| 29 | Robert A. Morse | 9 | Son | — | Massachusetts |
| 30 | Kenneth P. Morse | 7 | Son | — | Massachusetts |
| 31 | Ronald H. Morse | 3 | Son | — | Massachusetts |
| 32 | John Mainini | 35 | Head | Brick Layer | Italy |
| 33 | Antonietta Mainini | 36 | Wife | — | Italy |
| 34 | Peter Mainini | 16 | Son | — | Italy |
| 35 | Bernard Mainini | 9 | Son | — | Italy |
| 36 | Henry Mainini | 3 | Son | — | Massachusetts |
| 37 | Barbara A. Mainini | 0 | Daughter | — | Massachusetts |
| 38 | Bernard R. Greenberg | 41 | Head | Traveling Salesman | Russia |
| 39 | Anna F. Greenberg | 39 | Wife | — | Russia |
| 40 | Melvin E. Greenberg | 20 | Son | Delivery Boy | Massachusetts |
Related Census Records
Pedigree Summary
Leo + 1 sibling
Gen 1 · 6 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)