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Mary Mcconnell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Mcconnell across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 8-person household.
Age 8
b. ~1922
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | McConnell |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1922 |
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 |
|---|---|---|---|---|
| John Mcconnell | Son | — | 12 | ~1918 |
| William Mcconnell | Son | — | 13 | ~1917 |
| Ann Mcconnell | Daughter | — | 6 | ~1924 |
| Harold Mcconnell | Head | — | 40 | ~1890 |
| Anna Mcconnell | Spouse | — | 40 | ~1890 |
| Harry Mcconnell | Son | — | 10 | ~1920 |
| Mary Mcconnell | Daughter | — | 8 | ~1922 |
| James Mcconnell | Son | — | 11 | ~1919 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 8
Suffolk, Massachusetts · implied b. ~1922 — 8 household members
| Surname | McConnell |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 17
Suffolk-County, Massachusetts · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnolly |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same Place |
| 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 Mary Mcconnell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcconnell
Daughter · 1930 · age 8 · b. ~1922 · Massachusetts
★ You are viewing this record
Sibling
Harry Mcconnell
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Mcconnell
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcconnell
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcconnell
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcconnell
Sibling · 1930 · age 12
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 — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel954:0691)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theresa Wingfield | 12 | daughter | — | Massachusetts |
| 2 | William Wingfield | 7 | son | — | Massachusetts |
| 3 | Edwin Wingfield | 4 | son | — | Massachusetts |
| 4 | Thomas Halfkenny | 63 | Head | Painter | Canada Eng |
| 5 | Susanna Halfkenny | 54 | Wife | — | Canada Eng |
| 6 | Peter Halfkenny | 28 | son | Painter | Canada Eng |
| 7 | Cynthia Halfkenny | 25 | daughter-in-law | — | Canada Eng |
| 8 | Peter Jr. Halfkenny | 6 | Grandchild | — | Massachusetts |
| 9 | Arthur Jobert | 35 | Head | Police Officer | New York |
| 10 | Bertha Jobert | 28 | Wife | — | Canada English |
| 11 | Arthur Jr. Jobert | 1 | son | — | Massachusetts |
| 12 | George Dean | 36 | Head | Machinist | Massachusetts |
| 13 | Mary E. Dean | 34 | Sister | Sales Clerk | Massachusetts |
| 14 | Ferdinand Goss | 53 | Head | Manager | Massachusetts |
| 15 | Robert Goss | 24 | son | Chemist | Massachusetts |
| 16 | George Roberts | 40 | Head | Mechanic | Canada English |
| 17 | Mary Roberts | 25 | Wife | — | Italy |
| 18 | George Jr. Roberts | 4 | son | — | Massachusetts |
| 19 | Walter Roberts | 2 | son | — | Massachusetts |
| 20 | William Roberts | 1 | son | — | Massachusetts |
| 21 | Evelyn Roberts | 6 | daughter | — | Massachusetts |
| 22 | Lorraine Roberts | 12 | daughter | — | Massachusetts |
| 23 | Thomas Berry | 36 | Head | Wholesale Water | Irish Free State |
| 24 | Mary Berry | 27 | Wife | — | Irish Free State |
| 25 | Thomas Jr. Berry | 5 | son | — | Massachusetts |
| 26 | John F. Berry | 3 | son | — | Massachusetts |
| 27 | Edward Berry | 1 | son | — | Massachusetts |
| 28 | Harold Mcconnell | 40 | Head | Operator | Irish Free State |
| 29 | Anna Mcconnell | 40 | Wife | — | Irish Free State |
| 30 | William Mcconnell | 13 | son | — | Massachusetts |
| 31 | James Mcconnell | 11 | son | — | Massachusetts |
| 32 | Harry Mcconnell | 10 | son | — | Massachusetts |
| 33 | John Mcconnell | 12 | son | — | Massachusetts |
| 34 | Mary Mcconnell THIS PERSON | 8 | daughter | — | Massachusetts |
| 35 | Ann Mcconnell | 6 | daughter | — | Massachusetts |
| 36 | John Guilfoyle | 33 | Head | Operator | Irish Free State |
| 37 | Margaret Guilfoyle | 36 | Wife | — | Irish Free State |
| 38 | Edward Guilfoyle | 10 | son | — | Irish Free State |
| 39 | John Guilfoyle | 4 | son | — | Irish Free State |
| 40 | Margaret Guilfoyle | 7 | daughter | — | Irish Free State |
| 41 | Louis Gurevitch | 46 | Head | Illustrator Worker | Russia |
| 42 | Dora Gurevitch | 40 | Wife | — | Russia |
| 43 | Morris Gurevitch | 20 | son | — | Massachusetts |
| 44 | Hyman Gurevitch | 16 | son | — | Massachusetts |
| 45 | Anna Gurevitch | 14 | daughter | — | Massachusetts |
| 46 | Aaron Rich | 51 | Head | Clerk | Russia |
| 47 | Etta Rich | 41 | Wife | — | Germany |
| 48 | Samuel Zuckerman | 35 | Head | Tailor | Russia |
| 49 | Jenny Zuckerman | 38 | Wife | — | Russia |
| 50 | Alda Zuckerman | 14 | daughter | — | 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)