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John Mcconnell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this John Mcconnell across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1907), then head of a 8-person household.
Age 23
b. ~1907
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | McConnell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Oil Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Chauffeur |
| Township / Ward | Boston City |
| Est. Birth Year | ~1907 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Helen Mcconnell | Daughter | — | 10 | ~1920 |
| Margaret Mcconnell | Daughter | — | 15 | ~1915 |
| Ernest Mcconnell | Son | — | 17 | ~1913 |
| John Mcconnell | Son | — | 23 | ~1907 |
| Daniel Mcconnell | Son | — | 24 | ~1906 |
| Hugh Mcconnell | Son | — | 19 | ~1911 |
| Joseph Mcconnell | Son | — | 21 | ~1909 |
| Nellie Mcconnell | Head | — | 48 | ~1882 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 23
Suffolk, Massachusetts · implied b. ~1907 — 8 household members
| Surname | McConnell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Chauffeur |
| Industry | Oil Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Head, age 37
Suffolk-County, Massachusetts · implied b. ~1903 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnelly |
| Given Name | John T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | BOSTON CITY |
| 1935 Residence (County) | SUFFOLK |
| Occupation | Credit Man |
| Industry | Cudhay Packing Co. |
| Class of Worker | PW |
| Hours Worked | 41 |
| Income (1939) | 2100 |
| Highest Grade | H 4 |
| 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 John Mcconnell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mcconnell
Son · 1930 · age 23 · b. ~1907 · Massachusetts
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Sibling
Ernest Mcconnell
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mcconnell
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcconnell
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Mcconnell
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mcconnell
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Mcconnell
Sibling · 1930 · age 24
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:massachusettscensus00reel946:0453)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Dominic Guerriero | 37 | Head | Chauffeur | New York |
| 52 | Mary Guerriero | 36 | Wife | — | Massachusetts |
| 53 | Amelia Guerriero | 9 | Daughter | — | Massachusetts |
| 54 | Alphonsa Guerriero | 4 | Daughter | — | Massachusetts |
| 55 | Thomas Cristofori | 39 | Head | — | Massachusetts |
| 56 | Joseph Cristofori | 14 | Son | — | Massachusetts |
| 57 | Augustine Cristofori | 13 | Son | — | Massachusetts |
| 58 | Angelina Cristofori | 10 | Daughter | — | Massachusetts |
| 59 | Mary Cristofori | 9 | Daughter | — | Massachusetts |
| 60 | Richard Cristofori | 7 | Son | — | Massachusetts |
| 61 | Leo Mcdonald | 55 | Head | — | Canada |
| 62 | Eugene Mcdonald | 17 | Son | Clerk | Massachusetts |
| 63 | Leo Mcdonald | 15 | Son | — | Massachusetts |
| 64 | Alphonse Mcdonald | 13 | Son | — | Massachusetts |
| 65 | Nellie Mcconnell | 48 | Head | — | Ireland |
| 66 | Daniel Mcconnell | 24 | Son | Laborer | Massachusetts |
| 67 | John Mcconnell THIS PERSON | 23 | Son | Chauffeur | Massachusetts |
| 68 | Joseph Mcconnell | 21 | Son | Porter | Massachusetts |
| 69 | Hugh Mcconnell | 19 | Son | Printer | Massachusetts |
| 70 | Ernest Mcconnell | 17 | Son | — | Massachusetts |
| 71 | Margaret Mcconnell | 15 | Daughter | — | Massachusetts |
| 72 | Helen Mcconnell | 10 | Daughter | — | Massachusetts |
| 73 | Mary Cears | 50 | Head | — | Ireland |
| 74 | Catherine Cears | 20 | Daughter | Social Ser | Massachusetts |
| 75 | Burton Cears | 6 | Grandson | — | Massachusetts |
| 76 | Winifred Boylan | 56 | Head | — | Ireland |
| 77 | John Boylan | 34 | Son | Laborer | Massachusetts |
| 78 | Patrick Boylan | 31 | Son | Laborer | Massachusetts |
| 79 | James Boylan | 26 | Son | Operator | Massachusetts |
| 80 | Mary E Boylan | 24 | Daughter | — | Massachusetts |
| 81 | Andrew Mahoney Jr | 34 | Head | City Council | Massachusetts |
| 82 | Margaret Mahoney Jr | 33 | Wife | — | Massachusetts |
| 83 | Andrew Mahoney Jr | 16 | Son | — | Massachusetts |
| 84 | Thomas Mahoney Jr | 14 | Son | — | Massachusetts |
| 85 | Margaret Mahoney Jr | 12 | Daughter | — | Massachusetts |
| 86 | Gloria Mahoney Jr | 10 | Daughter | — | Massachusetts |
| 87 | James Mahoney Jr | 6 | Son | — | Massachusetts |
| 88 | Francis Pryor | 39 | Head | Painter | Alabama |
| 89 | Elizabeth Pryor | 38 | Wife | — | England |
| 90 | Margaret Pryor | 12 | Daughter | Inspector | Massachusetts |
| 91 | Francis Pryor | 10 | Son | — | Massachusetts |
| 92 | Elizabeth Pryor | 8 | Daughter | — | Massachusetts |
| 93 | William Pryor | 4 | Son | — | Massachusetts |
| 94 | Martha Cavanaugh | 58 | Head | — | Canada |
| 95 | Mary Cavanaugh | 56 | Sister | Attendant | Canada |
| 96 | Henry Cavanaugh | 51 | Cousin | Porter | Canada |
| 97 | Robert Cavanaugh | 50 | Brother | Watchman | Canada |
| 98 | Stephen Leary | 70 | Lodger | Laborer | Ireland |
| 99 | William Sullivan | 43 | Head | Laborer | Massachusetts |
| 100 | Catherine Sullivan | 39 | Wife | — | Canada |
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)