MC
Mary Clancy — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cumberland, Maine
Our Model Tree links this Mary Clancy across the 1920 and 1930 US Censuses in Cumberland, Maine (XGBoost, ~Confirmed) — first a daughter (b.~1902), then head of a 9-person household.
Age 28
b. ~1902
Female
Daughter
Born: Maine
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cumberland, Maine |
| Surname | Clancy |
| Given Name | Mary P. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Additional Details | |
| Occupation | Comptometer |
| Industry | Auto camp |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Comptometer |
| Township / Ward | Portland City |
| Est. Birth Year | ~1902 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Daniel Clancy | Head | — | 52 | ~1878 |
| Daniel Clancy | Son | — | 24 | ~1906 |
| Elizabeth Clancy | Daughter | — | 15 | ~1915 |
| Eleanor Clancy | Daughter | — | 19 | ~1911 |
| Coleman Clancy | Son | — | 11 | ~1919 |
| Ellen Clancy | Other | — | 57 | ~1873 |
| Mary Clancy | Daughter | — | 28 | ~1902 |
| Donald Clancy | Son | — | 26 | ~1904 |
| Edward Clancy | Son | — | 29 | ~1901 |
Census Appearances
1920
Cumberland, Maine
Daughter, age 18
Cumberland, Maine · implied b. ~1902 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clancey |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
Cumberland, Maine
Daughter, age 28
Cumberland, Maine · implied b. ~1902 — 9 household members
| Surname | Clancy |
| Given Name | Mary P. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Maine |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | Comptometer |
| Industry | Auto camp |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Clancy across 2 US Census years (1920 and 1930) in Cumberland, Maine, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Clancy
Daughter · 1930 · age 28 · b. ~1902 · Maine
★ You are viewing this record
Sibling
Elizabeth Clancy
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Coleman Clancy
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Clancy
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Clancy
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Clancy
Sibling · 1930 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Clancy
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 — Cumberland, Maine
Open full size
1930 US Federal Census — Cumberland, Maine
Page Contents
50 people indexed on this census page (ia:1930:15thcensus831unit:0640)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Steven Mcdonough | 40 | Head | Laborer | Irish Free State |
| 52 | Kathryn Mcdonough | 33 | Wife-H | — | Irish Free State |
| 53 | Mary Mcdonough | 9 | Daughter | — | Maine |
| 54 | John Mcdonough | 4 | Son | — | Maine |
| 55 | Martin Mcdonough | 2 | Son | — | Maine |
| 56 | Daniel J. Clancy | 52 | Head | Commercial Salesman | Maine |
| 57 | Ellen J. Clancy | 57 | Wife-H | — | Maine |
| 58 | Edward F. Clancy | 29 | Son | Salesman | Maine |
| 59 | Mary P. Clancy THIS PERSON | 28 | Daughter | Comptometer | Maine |
| 60 | Donald Clancy | 26 | Son | Commercial Salesman | New Hampshire |
| 61 | Daniel J. Clancy | 24 | Son | — | Massachusetts |
| 62 | Eleanor J. Clancy | 19 | Daughter | — | Maine |
| 63 | Elizabeth J. Clancy | 15 | Daughter | — | Maine |
| 64 | Coleman Clancy | 11 | Son | — | Maine |
| 65 | Ethel M. Peterson | 40 | Head-H | — | Maine |
| 66 | Margie Peterson | 12 | Daughter | — | Maine |
| 67 | Henry Peterson | 12 | Son | — | Maine |
| 68 | Thomas Moore | 32 | Roomer | — | Maine |
| 69 | Arthur Dabrie | 21 | Roomer | Electrician | Maine |
| 70 | Winifred Dabrie | 21 | Roomer | — | Maine |
| 71 | William Hummie | 48 | Head | — | Maine |
| 72 | Mary Hummie | 47 | Wife-H | — | Maine |
| 73 | Floyd Hummie | 17 | Son | — | Maine |
| 74 | Madelyn Mccollor | 22 | Daughter | — | Maine |
| 75 | Blanche Jewett | 35 | Roomer | Saleslady | Maine |
| 76 | Martha W. Ingersoll | 28 | Roomer | Stenographer | Maine |
| 77 | Leo F. O'Brien | 43 | Head | Commission Merchant | Maine |
| 78 | John O'Brien | 13 | Son | — | Maine |
| 79 | Robert O'Brien | 11 | Son | — | Maine |
| 80 | William O'Brien | 4 | Son | — | Maine |
| 81 | Marion O'Brien | 0 | Daughter | — | Maine |
| 82 | Martin Conroy | 41 | Head | Gardener | Irish Free State |
| 83 | Ellen Conroy | 41 | Wife | — | Northern Ireland |
| 84 | John E. Jackson | 57 | Head | Surveyor | English Canada |
| 85 | Helena Jackson | 51 | Wife-H | — | English Canada |
| 86 | Helena A. Jackson | 24 | Daughter | Teacher | Maine |
| 87 | Richard Hennessy | 68 | Head | Packer | Maine |
| 88 | Kathryn E. Hennessy | 68 | Wife-H | — | Irish Free State |
| 89 | Arthur M. Hennessy | 32 | Son | Sheet Metal Worker | Maine |
| 90 | Kathryn J. Weston | 17 | Daughter | — | Maine |
| 91 | Frederick Monohan | 31 | Head | Fireman | New Hampshire |
| 92 | Kathryn Monohan | 35 | Wife-H | — | Maine |
| 93 | William E. Crockett | 16 | Son | — | Maine |
| 94 | John E. Jordan | 54 | Head | Cook | New Hampshire |
| 95 | Elizabeth Jordan | 50 | Wife-H | Nursemaid | Maine |
| 96 | Eugene A. Clancy | 31 | Head | Clerk | Maine |
| 97 | Helena Clancy | 30 | Wife-H | Office Clerk | Maine |
| 98 | Forest Roberts | 39 | Head | Printer | Maine |
| 99 | Augusta Roberts | 34 | Wife-H | — | Maine |
| 100 | Patrick Mcdonough | 40 | Head | Laborer | Irish Free State |
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)