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John Knox — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Knox across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1911), then head of a 10-person household.
Age 19
b. ~1911
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Knox |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Deliveryman |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Deliveryman |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1911 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elsie Knox | Daughter | — | 25 | ~1905 |
| John Knox | Son | — | 19 | ~1911 |
| Howard Knox | Son | — | 26 | ~1904 |
| Norman Knox | Son | — | 17 | ~1913 |
| Carlson Knox | Other | — | 26 | ~1904 |
| Dorothy Knox | Daughter | — | 23 | ~1907 |
| Thelma Knox | Daughter | — | 15 | ~1915 |
| Winifred Knox | Daughter | — | 6 | ~1924 |
| Susan Knox | Spouse | — | 49 | ~1881 |
| John Knox | Head | — | 50 | ~1880 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 9
Middlesex, Massachusetts · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | John F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 19
Middlesex, Massachusetts · implied b. ~1911 — 10 household members
| Surname | Knox |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Deliveryman |
| Industry | Grocery Store |
| 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 John Knox across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
John Knox
Son · 1930 · age 19 · b. ~1911 · Massachusetts
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Sibling
Thelma Knox
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Knox
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norman Knox
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Knox
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Knox
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsie Knox
Sibling · 1930 · age 25
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:massachusettscensus00reel928:0816)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Jean H. Dodge | 7 | Daughter | — | Massachusetts |
| 52 | Arlene T. Dodge | 5 | Son | — | Massachusetts |
| 53 | Mary D. Dodge | 1 | Daughter | — | Massachusetts |
| 54 | Dorothy Gardner | 15 | Servant | Servant | Massachusetts |
| 55 | Guy E. Hamilton | 42 | Head | Salesman | Rhode Island |
| 56 | Hazel C. Hamilton | 42 | Wife | — | Canada-English |
| 57 | Barbara G. Hamilton | 10 | Daughter | — | Massachusetts |
| 58 | Patricia D. Hamilton | 5 | Daughter | — | Massachusetts |
| 59 | Annie Lopresti | 74 | Mother-in-law | — | Canada-English |
| 60 | Warren E. Lewis | 42 | Head | Manager | Massachusetts |
| 61 | Lucile Lewis | 38 | Wife | — | Vermont |
| 62 | William H. Lewis | 19 | Son | Bookkeeper | Massachusetts |
| 63 | Eleanor G. Lewis | 9 | Daughter | — | Massachusetts |
| 64 | Warren H. Lewis | 8 | Son | — | Massachusetts |
| 65 | Fred A. Hoyt | 69 | Head | Engineer | New Hampshire |
| 66 | Jennie M. Hoyt | 60 | Wife | — | Maine |
| 67 | Roland C. Shore | 45 | Head | Paymaster | Massachusetts |
| 68 | Hazel J. Shore | 44 | Wife | — | Massachusetts |
| 69 | Gloria B. Shore | 15 | Son | — | Massachusetts |
| 70 | Frederick J. Shore | 13 | Son | — | Massachusetts |
| 71 | Charles D. Shore | 12 | Son | — | Massachusetts |
| 72 | Olive H. Shore | 9 | Daughter | — | Massachusetts |
| 73 | Lester Shore | 6 | Son | — | Massachusetts |
| 74 | Judith Shore | 2 | Daughter | — | Massachusetts |
| 75 | John M. Knox | 50 | Head | Chief Clerk | Massachusetts |
| 76 | Susan A. Knox | 49 | Wife | — | Massachusetts |
| 77 | Howard F. Knox | 26 | Son | Draftsman | Massachusetts |
| 78 | Elsie L. Knox | 25 | Daughter | Librarian | Massachusetts |
| 79 | Dorothy E. Knox | 23 | Daughter | — | Massachusetts |
| 80 | John F. Knox THIS PERSON | 19 | Son | Deliveryman | Massachusetts |
| 81 | Norman W. Knox | 17 | Son | Attendant | Massachusetts |
| 82 | Thelma G. Knox | 15 | Daughter | — | Massachusetts |
| 83 | Winifred F. Knox | 6 | Daughter | — | Massachusetts |
| 84 | Carlson Wilfred Knox | 26 | Boarder | Shipper | Canada-English |
| 85 | Mary A. Donoghue | 55 | Head | — | Irish Free State |
| 86 | Margaret Mackay | 26 | Servant | Servant | Canada-English |
| 87 | Chester W. Austin | 39 | Head | Salesman | Massachusetts |
| 88 | Ethel J. Austin | 41 | Wife | — | Massachusetts |
| 89 | Lois L. Austin | 14 | Daughter | — | Massachusetts |
| 90 | George E. Gunter | 62 | Head | Inspector | Massachusetts |
| 91 | Agatha M. Gunter | 61 | Wife | — | Massachusetts |
| 92 | Francis L. Ahern | 39 | Head | Civil Engineer | Massachusetts |
| 93 | Eleanor M. Ahern | 39 | Wife | — | Massachusetts |
| 94 | Frank L. Jr. Ahern | 7 | Son | — | Massachusetts |
| 95 | Richard J. Ahern | 2 | Son | — | Massachusetts |
| 96 | George W. Gibson | 46 | Head | Police Officer | Vermont |
| 97 | Lottie H. Gibson | 51 | Wife | — | Canada-English |
| 98 | Frederick R. Warren | 64 | Head | Foreman | Massachusetts |
| 99 | Mary A. Warren | 54 | Wife | — | Massachusetts |
| 100 | Frederick R. Warren | 25 | Son | Clerk | Massachusetts |
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)