MC
Mary Connelly — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cumberland, Maine
Our Model Tree links this Mary Connelly across the 1930 and 1940 US Censuses in Cumberland, Maine (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 8-person household.
Age 10
b. ~1920
Female
Daughter
Born: Maine
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cumberland, Maine |
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Canada-English |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Township / Ward | Portland City |
| Est. Birth Year | ~1920 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Michael Connelly | Head | — | 35 | ~1895 |
| Katherine Connelly | Daughter | — | 11 | ~1919 |
| John Connelly | Son | — | 7 | ~1923 |
| Candace Connelly | Daughter | — | 2 | ~1928 |
| Mary Connelly | Daughter | — | 10 | ~1920 |
| Margaret Connelly | Daughter | — | 5 | ~1925 |
| Michael Connelly | Son | — | 8 | ~1922 |
| Katherine Connelly | Spouse | — | 35 | ~1895 |
Census Appearances
1930
Cumberland, Maine
Daughter, age 10
Cumberland, Maine · implied b. ~1920 — 8 household members
| Surname | Connelly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Canada-English |
| Can Read/Write | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Cumberland-County, Maine
Daughter, age 19
Cumberland-County, Maine · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Maine |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Cumberland |
| Occupation | Cashier |
| Industry | Retail Grocery |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 210 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 Connelly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Connelly
Daughter · 1930 · age 10 · b. ~1920 · Maine
★ You are viewing this record
Sibling
Candace Connelly
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Connelly
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Connelly
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Connelly
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Connelly
Sibling · 1930 · age 11
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 — Cumberland, Maine
Open full size
1930 US Federal Census — Cumberland, Maine
Page Contents
50 people indexed on this census page (ia:1930:15thcensus830unit:1074)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Blanche H Waterhouse | 22 | Lodger | Fisherman | Maine |
| 2 | Nellie Waterhouse | 23 | Lodger | — | Maine |
| 3 | Stella Sabbath | 23 | Lodger | Truck Driver | Maine |
| 4 | John Sabbath | 4 | Lodger | — | Maine |
| 5 | Dorothy Sabbath | 25 | Lodger | — | Maine |
| 6 | Bruce Sabbath | 5 | Lodger | — | Maine |
| 7 | Harold Sabbath | 2 | Lodger | — | Maine |
| 8 | Beatrice Sabbath | 22 | Lodger | — | Maine |
| 9 | Madelyn Sabbath | 18 | Lodger | — | Maine |
| 10 | Pauline Sabbath | 12 | Lodger | — | Maine |
| 11 | John Carroll | 55 | Lodger | Laborer | Maine |
| 12 | Mary Carroll | 38 | Lodger | — | Massachusetts |
| 13 | John Carroll | 12 | Lodger | — | Maine |
| 14 | Ernest Smith | 55 | Lodger | Painter | Maine |
| 15 | Margaret Smith | 50 | Lodger | — | Maine |
| 16 | Grace Smith | 12 | Lodger | — | Maine |
| 17 | Michael J Connelly | 35 | Head | Printer | Maine |
| 18 | Katherine Connelly | 35 | Wife | — | Canada-English |
| 19 | Katherine Connelly | 11 | Daughter | — | Maine |
| 20 | Mary Connelly THIS PERSON | 10 | Daughter | — | Maine |
| 21 | Michael Connelly | 8 | Son | — | Maine |
| 22 | John Connelly | 7 | Son | — | Maine |
| 23 | Margaret Connelly | 5 | Daughter | — | Maine |
| 24 | Candace Connelly | 2 | Daughter | — | Maine |
| 25 | Mary Keery | 42 | Head | Stitcher | Maine |
| 26 | Annie Keery | 38 | Sister | Stitcher | Maine |
| 27 | Herbert Barron | 44 | Head | Solicitor | Maine |
| 28 | Alice Barron | 40 | Wife | — | Maine |
| 29 | Herbert Barron | 19 | Son | Typist | Maine |
| 30 | Clayton Barron | 18 | Son | Shipper | Maine |
| 31 | Mary Barron | 17 | Daughter | — | Maine |
| 32 | Viola Barron | 12 | Daughter | — | Maine |
| 33 | Mina Shapaccian | 47 | Head | Laborer | Armenia |
| 34 | Martha Shapaccian | 40 | Wife | Stitcher | Armenia |
| 35 | Mildred Shapaccian | 18 | Daughter | Bookkeeper | Maine |
| 36 | Agnes Shapaccian | 17 | Daughter | Stitcher | Maine |
| 37 | Abraham Shapaccian | 16 | Son | — | Maine |
| 38 | Mary Shapaccian | 15 | Daughter | — | Massachusetts |
| 39 | William Mcphee | 30 | Head | Clerk | Maine |
| 40 | Mary Mcphee | 50 | Mother | — | Canada-English |
| 41 | Mary Chapman | 94 | Head | — | Massachusetts |
| 42 | Annie Carlton | 72 | Housekeeper | Housekeeper | Canada-English |
| 43 | Clarence S Berry | 25 | Head | Battery Man | Maine |
| 44 | Alice Berry | 22 | Wife | Egg Handler | Maine |
| 45 | Arthur Benoit | 29 | Head | Barber | New Hampshire |
| 46 | Beatrice Benoit | 28 | Wife | — | Maine |
| 47 | Raymond Benoit | 11 | Son | — | Maine |
| 48 | Dorothy Benoit | 9 | Daughter | — | Maine |
| 49 | Donald Benoit | 7 | Son | — | Maine |
| 50 | Virginia Rogers | 27 | Lodger | Laundress | Maine |
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)