JC
John Connolly — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Connolly across the 1900, 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 4-person household.
Age 54
b. ~1866
Male
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Connolly |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Laborer |
| Industry | City |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Ireland |
| Year of Naturalization | 1893 |
| Birthplace (normalized) | ireland |
| Occupation | Laborer |
| Township / Ward | Cambridge City |
| Est. Birth Year | ~1866 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Connolly | Daughter | — | 22 | ~1898 |
| John Connolly | Son | — | 27 | ~1893 |
| John Connolly | Head | — | 54 | ~1866 |
| Mary Connolly | Daughter | — | 29 | ~1891 |
Census Appearances
Head, age 35
Suffolk, Massachusetts · implied b. ~1865 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Mar |
| Birth Year | 1865 |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Middlesex, Massachusetts
Head, age 43
Middlesex, Massachusetts · implied b. ~1867 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 20 |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Freight House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Middlesex, Massachusetts
Head, age 54
Middlesex, Massachusetts · implied b. ~1866 — 4 household members
| Surname | Connolly |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | City |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Ireland |
| Year of Naturalization | 1893 |
| Birthplace (normalized) | ireland |
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 Connolly across 3 US Census years (1900, 1910 and 1920) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Connolly
Head · 1920 · age 54 · b. ~1866 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu707unit:0315)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eunice Ryan | 38 | Lodger | Stenographer | Rhode Island |
| 2 | Isaac Ryan | 44 | Lodger | Painter | Canada |
| 3 | John Connolly THIS PERSON | 54 | Head | Laborer | Ireland |
| 4 | Mary E Connolly | 29 | Daughter | Bookkeeper | Massachusetts |
| 5 | Gertrude Connolly | 22 | Daughter | Stenographer | Massachusetts |
| 6 | John W Connolly | 27 | Son | Clerk | Massachusetts |
| 7 | Joseph Randall | 46 | Head | Carpenter | Newfoundland |
| 8 | Nellie F Randall | 48 | Lodger | — | Maine |
| 9 | Elizabeth Randall | 15 | Lodger | — | Newfoundland |
| 10 | Thelma Tippett | 20 | Lodger | — | Maine |
| 11 | Harold L Perrig | 29 | Lodger | Clerk | Canada |
| 12 | Louis Stack | 22 | Lodger | Clerk | Canada |
| 13 | Elizabeth Stack | 63 | Lodger | — | Canada |
| 14 | Lester M West | 27 | Lodger | Clerk | Canada |
| 15 | Elizabeth A West | 26 | Lodger | — | Canada |
| 16 | Thomas A Logan | 27 | Lodger | Clerk | Massachusetts |
| 17 | Beatrice Logan | 26 | Lodger | — | Massachusetts |
| 18 | Thomas W Logan | 1 | Lodger | — | Massachusetts |
| 19 | Elizabeth Olmstead | 21 | Head | Stenographer | Massachusetts |
| 20 | Harold W Saunders | 25 | Lodger | Clerk | New Jersey |
| 21 | Elva Saunders | 25 | Lodger | — | New Jersey |
| 22 | Leila Saunders | 0 | Lodger | — | New Jersey |
| 23 | Mildred H Uphill | 23 | Lodger | Clerk | Massachusetts |
| 24 | Ethel M Vincent | 20 | Lodger | Clerk | Massachusetts |
| 25 | Marion G Vincent | 22 | Lodger | Clerk | Massachusetts |
| 26 | John Loja | 33 | Head | Laborer | Portugal |
| 27 | Beatrice Loja | 27 | Wife | — | Portugal |
| 28 | Laura Loja | 6 | Daughter | — | Massachusetts |
| 29 | John Loja | 5 | Son | — | Massachusetts |
| 30 | Lydia Loja | 1 | Daughter | — | Massachusetts |
| 31 | Mary A Simmons | 45 | Head | — | New York |
| 32 | Edward H Simmons | 21 | Son | Clerk | Massachusetts |
| 33 | Mary C Simmons | 25 | Daughter | Stenographer | Massachusetts |
| 34 | James Barry | 43 | Head | Laborer | Ireland |
| 35 | Catherine Barry | 26 | Wife | — | Ireland |
| 36 | Henry Gregg | 55 | Lodger | Painter | Canada |
| 37 | Isabella Gregg | 29 | Lodger | — | Canada |
| 38 | Sahag Sahagian | 35 | Head | Laborer | Armenia |
| 39 | Nuvart Sahagian | 22 | Wife | — | Armenia |
| 40 | Florence Sahagian | 2 | Daughter | — | Massachusetts |
| 41 | Haig Sahagian | 1 | Son | — | Massachusetts |
| 42 | Henry B Wadsworth | 59 | Head | Clerk | Connecticut |
| 43 | Hiram S Wadsworth | 44 | Brother | Clerk | Kentucky |
| 44 | Carl A Dahl | 52 | Head | Laborer | Sweden |
| 45 | Amelia S Dahl | 52 | Wife | — | Sweden |
| 46 | Frank C Dahl | 19 | Son | Clerk | Massachusetts |
| 47 | Arthur C Dahl | 15 | Son | — | Massachusetts |
| 48 | Esther A Dahl | 13 | Daughter | — | Massachusetts |
| 49 | Dennis O'Brien | 43 | Head | Laborer | Ireland |
| 50 | Elizabeth O'Brien | 26 | Lodger | — | Massachusetts |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)