RS
Robert Spencer — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Robert Spencer across the 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Richard & Richard — first a son (b.~1908), then head of a 9-person household.
Age 22
b. ~1908
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Spencer |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Plumber |
| Industry | Contractor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Plumber |
| Township / Ward | Lexington Town |
| Est. Birth Year | ~1908 |
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 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Rosie Spencer | Daughter | — | 12 | ~1918 |
| Eileen Spencer | Daughter | — | 10 | ~1920 |
| Louise Spencer | Daughter | — | 14 | ~1916 |
| Richard Spencer | Son | — | 20 | ~1910 |
| Robert Spencer | Son | — | 22 | ~1908 |
| Susan Spencer | Spouse | — | 42 | ~1888 |
| Edith Spencer | Daughter | — | 16 | ~1914 |
| Anna Spencer | Daughter | — | 18 | ~1912 |
| Richard Spencer | Head | — | 44 | ~1886 |
Census Appearances
1910
Middlesex, Massachusetts
Son, age 2
Middlesex, Massachusetts · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Spencer |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1909 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Spencer |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| 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 22
Middlesex, Massachusetts · implied b. ~1908 — 9 household members
| Surname | Spencer |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Plumber |
| Industry | Contractor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Robert Spencer across 3 US Census years (1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father Richard Spencer (~0.92 confidence) and father Richard Spencer (~0.92 confidence) and mother Annie Spencer (~0.92 confidence) and mother Jessie Spencer (~0.92 confidence) and mother Susan Spencer (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Richard Spencer
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Richard Spencer
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Annie Spencer
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Jessie Spencer
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Susan Spencer
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Spencer
Son · 1930 · age 22 · b. ~1908 · Massachusetts
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Sibling
Edith Spencer
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Spencer
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Spencer
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Spencer
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosie Spencer
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Spencer
Sibling · 1930 · age 14
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
44 people indexed on this census page (ia:1930:massachusettscensus00reel919:0964)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard J Spencer | 44 | Head | Plumber | Massachusetts |
| 2 | Susan M Spencer | 42 | Wife | None | Massachusetts |
| 3 | Robert J Spencer THIS PERSON | 22 | Son | Plumber | Massachusetts |
| 4 | Richard J Jr Spencer | 20 | Son | Plumber | Massachusetts |
| 5 | Anna G Spencer | 18 | Daughter | Bookkeeper | Massachusetts |
| 6 | Edith M Spencer | 16 | Daughter | None | Massachusetts |
| 7 | Louise W Spencer | 14 | Daughter | None | Massachusetts |
| 8 | Rosie H Spencer | 12 | Daughter | None | Massachusetts |
| 9 | Eileen Spencer | 10 | Daughter | None | Massachusetts |
| 10 | Philip P Peterson | 56 | Head | Painter | Massachusetts |
| 11 | Madeline Peterson | 54 | Wife | None | Massachusetts |
| 12 | Barbara M Peterson | 17 | Daughter | None | Massachusetts |
| 13 | Robert P Peterson | 14 | Son | None | Massachusetts |
| 14 | — | None | — | — | — |
| 15 | — | None | — | — | — |
| 16 | — | None | — | — | — |
| 17 | — | None | — | — | — |
| 18 | — | None | — | — | — |
| 19 | — | None | — | — | — |
| 20 | — | None | — | — | — |
| 21 | — | None | — | — | — |
| 22 | — | None | — | — | — |
| 23 | — | None | — | — | — |
| 24 | — | None | — | — | — |
| 25 | — | None | — | — | — |
| 26 | — | None | — | — | — |
| 27 | Edward Bond | 54 | Head | None | England |
| 28 | Mary A Bond | 37 | Wife | None | Massachusetts |
| 29 | Alice P Bond | 16 | Daughter | None | Massachusetts |
| 30 | Grace Bond | 14 | Daughter | None | Massachusetts |
| 31 | Edward Jr Bond | 12 | Son | None | Massachusetts |
| 32 | Marjorie Bond | 9 | Daughter | None | Massachusetts |
| 33 | Harriet E Hill | 31 | Sister-in-law | None | New York |
| 34 | Edward J Rogers | 56 | Head | Plumber | Massachusetts |
| 35 | Ida R Rogers | 54 | Wife | None | Massachusetts |
| 36 | Helen A Hall | 31 | Niece | Operator | Massachusetts |
| 37 | Donald D Mckinnon | 51 | Head | Painter | Canada |
| 38 | Mary A Mckinnon | 44 | Wife | None | Canada |
| 39 | Geoffrey Mckinnon | 25 | Son | Painter | Canada |
| 40 | James Mckinnon | 24 | Son | Plasterer | Canada |
| 41 | Harold A Mckinnon | 22 | Son | Plasterer | New York |
| 42 | Elizabeth Mckinnon | 20 | Daughter | Operator | New Jersey |
| 43 | Dorothy E Mckinnon | 18 | Daughter | None | New York |
| 44 | Millard Ryckman | 60 | Head | None | Canada |
Pedigree Summary
Robert + 6 siblings
Gen 1 · 5 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)