MC
Mary Connor — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Mary Connor across the 1910, 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1867), then head of a 5-person household.
Age 53
b. ~1867
Female
Spouse
Born: New Hampshire
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Connor |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1867 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Catherine Connor | Daughter | — | 19 | ~1901 |
| Mina Connor | Daughter | — | 23 | ~1897 |
| John Connor | Head | — | 53 | ~1867 |
| Edward Connor | Son | — | 21 | ~1899 |
| Mary Connor | Spouse | — | 53 | ~1867 |
Census Appearances
1910
Middlesex, Massachusetts
Spouse, age 45
Middlesex, Massachusetts · implied b. ~1865 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connor |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Years Married | 11 |
| Children Born | 3 |
| Children Living | 3 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
Middlesex, Massachusetts
Spouse, age 53
Middlesex, Massachusetts · implied b. ~1867 — 5 household members
| Surname | Connor |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Middlesex, Massachusetts
Other, age 62
Middlesex, Massachusetts · implied b. ~1868 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connors |
| Given Name | Mary E |
| Relationship to Head | Head-H |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| Age at First Marriage | 19 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Veteran | No |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Middlesex-County, Massachusetts
Head, age 76
Middlesex-County, Massachusetts · implied b. ~1864
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Conner |
| Given Name | Martha R. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Mary Connor across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Connor
Spouse · 1920 · age 53 · b. ~1867 · 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:1920:14thcensusofpopu711unit:0986)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Henry Lavoie | 63 | Head | Laborer | Canada |
| 52 | Leocadia Lavoie | 60 | Wife | — | Canada |
| 53 | Edward Lavoie | 23 | Son | Laborer | Massachusetts |
| 54 | Anna Lavoie | 20 | Daughter | Clerk | Massachusetts |
| 55 | Arthur Lavoie | 18 | Son | — | Massachusetts |
| 56 | Pierre M. Bernard | 52 | Head | Barber | Canada |
| 57 | Olivine Bernard | 45 | Wife | Weaver | Canada |
| 58 | George Bernard | 9 | Adopted Son | — | Massachusetts |
| 59 | Peter Leblanc | 47 | Head | Machinist | Canada |
| 60 | Josephine Leblanc | 45 | Wife | — | Canada |
| 61 | Blanche Leblanc | 21 | Daughter | Operator | Massachusetts |
| 62 | Lucien A. Leblanc | 20 | Son | Machinist | Massachusetts |
| 63 | Leo Chaulieu | 21 | Boarder | Barber | Massachusetts |
| 64 | Andrew Malley | 52 | Head | Foreman | Massachusetts |
| 65 | Nellie Malley | 50 | Wife | Cutter | Massachusetts |
| 66 | Frances Malley | 22 | Son | Bookkeeper | Massachusetts |
| 67 | Claire Malley | 19 | Daughter | Bookkeeper | Massachusetts |
| 68 | Andrew Malley | 14 | Son | — | Massachusetts |
| 69 | John J. Connor | 53 | Head | Contractor | Canada |
| 70 | Mary Connor THIS PERSON | 53 | Wife | — | New Hampshire |
| 71 | Mina Connor | 23 | Daughter | — | Massachusetts |
| 72 | Edward J. Connor | 21 | Son | — | Massachusetts |
| 73 | Catherine Connor | 19 | Daughter | — | Massachusetts |
| 74 | James Johnson | 53 | Head | Civil Engineer | Ireland |
| 75 | Margaret Johnson | 53 | Wife | — | England |
| 76 | Mary Keefe | 45 | Head | — | Massachusetts |
| 77 | Agnes Keefe | 23 | Daughter | Finisher | Massachusetts |
| 78 | Lauretta Keefe | 22 | Daughter | Bookkeeper | Massachusetts |
| 79 | Amanda Keefe | 19 | Daughter | Finisher | Massachusetts |
| 80 | Alice Tingley | 49 | Head | — | Massachusetts |
| 81 | Patrick O'Leary | 68 | Head | Contractor | Ireland |
| 82 | Thomas B. O'Leary | 32 | Son | Clerk | Massachusetts |
| 83 | Mary M. O'Leary | 31 | Daughter | — | Massachusetts |
| 84 | Helen F. O'Leary | 27 | Daughter | — | Massachusetts |
| 85 | Patrick J. O'Leary | 25 | Son | Clerk | Massachusetts |
| 86 | Mary G. Beck | 50 | Housekeeper | Housekeeper | Ireland |
| 87 | Charles J. Nicolle | 38 | Head | Printer | Massachusetts |
| 88 | Catherine Nicolle | 35 | Wife | Folder | Canada |
| 89 | George Nicolle | 17 | Son | — | Massachusetts |
| 90 | Ethel Nicolle | 15 | Daughter | — | Massachusetts |
| 91 | Ralph Nicolle | 12 | Son | — | Massachusetts |
| 92 | Eugene Nicolle | 72 | Head | — | Canada |
| 93 | Goldie Nicolle | 42 | Daughter | Folder | Vermont |
| 94 | Leida Nicolle | 40 | Daughter | Folder | Michigan |
| 95 | Freda Nicolle | 38 | Daughter | — | Michigan |
| 96 | Alda Nicolle | 36 | Daughter | Folder | Michigan |
| 97 | Eulilie O. Nicolle | 13 | Adopted Daughter | — | Massachusetts |
| 98 | Henry Lantagne | 73 | Head | Carpenter | Canada |
| 99 | Margaret Lantagne | 71 | Wife | — | Canada |
| 100 | Joseph G. Lantagne | 51 | Son | Pharmacist | Massachusetts |
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)