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Leonard Davis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Leonard Davis across the 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Joseph & Prentiss — first a son (b.~1910), then head of a 8-person household.
Age 20
b. ~1910
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Davis |
| Given Name | Leonard F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Age at First Marriage | 7727 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Gas & Electric |
| Industry | Electric Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Gas & Electric |
| Township / Ward | Town Of Pepperell |
| Est. Birth Year | ~1910 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Leonard | Age | Birth yr |
|---|---|---|---|---|
| Claire Davis | Daughter | — | 6 | ~1924 |
| Paul Davis | Son | — | 10 | ~1920 |
| Thomas Davis | Head | — | 47 | ~1883 |
| Joseph Davis | Son | — | 3 | ~1927 |
| Leonard Davis | Son | — | 20 | ~1910 |
| Richard Davis | Son | — | 17 | ~1913 |
| William Davis | Son | — | 22 | ~1908 |
| Margaret Davis | Spouse | — | 45 | ~1885 |
Census Appearances
1910
Middlesex, Massachusetts
Son, age 1
Middlesex, Massachusetts · implied b. ~1909 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Leon Y. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 10
Middlesex, Massachusetts · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Leonard J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 20
Middlesex, Massachusetts · implied b. ~1910 — 8 household members
| Surname | Davis |
| Given Name | Leonard F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Age at First Marriage | 7727 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Gas & Electric |
| Industry | Electric Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Davis across 3 US Census years (1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father Joseph Davis (~0.92 confidence) and father Prentiss Davis (~0.92 confidence) and father Thomas Davis (~0.92 confidence) and mother Effie Davis (~0.92 confidence) and mother Margaret Davis (~0.92 confidence) and mother Margaret Davis (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Davis
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Prentiss Davis
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Thomas Davis
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Effie Davis
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Margaret Davis
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Margaret Davis
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leonard Davis
Son · 1930 · age 20 · b. ~1910 · Massachusetts
★ You are viewing this record
Sibling
Paul Davis
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Davis
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Davis
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Davis
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Davis
Sibling · 1930 · age 22
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
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel925:1096)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfreda La Page | 52 | Wife | — | Canada-French |
| 2 | Augustus W. Moody | 40 | Head | Electrician | Massachusetts |
| 3 | Gertrude Moody | 39 | Wife | — | New Hampshire |
| 4 | Augustus D. Moody | 17 | Son | — | Massachusetts |
| 5 | William J. Moody | 11 | Son | — | Massachusetts |
| 6 | George Du Paw | 50 | Head | Druggist | Vermont |
| 7 | Isabel Du Paw | 50 | Wife | Druggist | New Hampshire |
| 8 | E. Maud Jacobs | 42 | Cousin | Housekeeper | Maine |
| 9 | Charles Mck. Smith | 56 | Head | Engineer | Scotland |
| 10 | Jane S. Smith | 56 | Wife | — | England |
| 11 | Clifford Colburn | 13 | Nephew | — | New Hampshire |
| 12 | Marion Conway | 22 | Lodger | Teacher | Massachusetts |
| 13 | Catherine Walsh | 20 | Lodger | Stenographer | Massachusetts |
| 14 | Alice O'Brien | 34 | Head | — | Massachusetts |
| 15 | Thomas O'Brien | 3 | Son | — | Massachusetts |
| 16 | John O'Brien | 2 | Son | — | Massachusetts |
| 17 | Robert O'Brien | 1 | Son | — | Massachusetts |
| 18 | Thomas Gilbert | 67 | Head | Laborer | Canada-French |
| 19 | Matilda Gilbert | 55 | Wife | — | New York |
| 20 | Grace Cherry | 19 | Daughter | Sorter | New Hampshire |
| 21 | Ernest Cherry | 1 | Son | — | New Hampshire |
| 22 | Eva Gilbert | 21 | Daughter | Sorter | New Hampshire |
| 23 | Maud Dow | 64 | Head | — | New Hampshire |
| 24 | Harry Dow | 25 | Son | Labor | Massachusetts |
| 25 | Frances Mary | 48 | Wife | — | Massachusetts |
| 26 | Richard J. Tampney | 54 | Husband | Cutter | New Hampshire |
| 27 | Mary F. Tampney | 20 | Daughter | Stenographer | Massachusetts |
| 28 | Richard Tampney | 17 | Son | — | Massachusetts |
| 29 | Raymond Tampney | 17 | Son | — | Massachusetts |
| 30 | Robert Tampney | 8 | Son | — | Massachusetts |
| 31 | Mary Daigery | 74 | Head | — | Massachusetts |
| 32 | Margaret Daigery | 43 | Daughter | Spooling | Massachusetts |
| 33 | Catherine Daigery | 45 | Daughter | Counter | Massachusetts |
| 34 | George T. Archer | 42 | Head | Finisher | Massachusetts |
| 35 | Nora V. Archer | 42 | Wife | — | Massachusetts |
| 36 | George T. Archer | 20 | Son | Worker | New Hampshire |
| 37 | Margaret Archer | 15 | Daughter | — | New Hampshire |
| 38 | Thomas Davis | 47 | Head | Feeder | New Hampshire |
| 39 | Margaret C. Davis | 45 | Wife | — | Massachusetts |
| 40 | William E. Davis | 22 | Son | Slitter Room | Massachusetts |
| 41 | Leonard F. Davis THIS PERSON | 20 | Son | Gas & Electric | Massachusetts |
| 42 | Richard R. Davis | 17 | Son | — | Massachusetts |
| 43 | Paul Davis | 10 | Son | — | New Hampshire |
| 44 | Claire Davis | 6 | Daughter | — | New Hampshire |
| 45 | Joseph T. Davis | 3 | Son | — | New Hampshire |
| 46 | Fred W. Moore | 34 | Head | Machinist | Massachusetts |
| 47 | Edith A. Moore | 31 | Wife | — | New Hampshire |
| 48 | Harold Moore | 7 | Son | — | Massachusetts |
| 49 | Alton Read | 20 | Husband | Wrapper | New Hampshire |
| 50 | Sylvia Read | 20 | Wife | — | Vermont |
Related Census Records
Pedigree Summary
Leonard + 5 siblings
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 1930 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)