ML
Mary Leary — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Mary Leary across the 1900, 1910 and 1920 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 6-person household.
Age 34
b. ~1866
Female
Head
Born: Ireland
Widowed
1900 Census Record Details
| Census Year | 1900 |
| Location | Suffolk, Massachusetts |
| Surname | Leary |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Birth Month | Nov |
| Birth Year | 1866 |
| Naturalization Status | Un |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Precinct 7 Boston Ward 17 |
| Est. Birth Year | ~1866 |
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.
6 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| James Leary | Son | — | 13 | ~1887 |
| John Nolan | Other | — | 20 | ~1880 |
| Edward Mcmanus | Other | — | 30 | ~1870 |
| W Dood | Other | — | 41 | ~1859 |
| Daniel Leary | Son | — | 17 | ~1883 |
| Mary Leary | Head | — | 34 | ~1866 |
Census Appearances
1900
Suffolk, Massachusetts
Head, age 34
Suffolk, Massachusetts · implied b. ~1866 — 6 household members
| Surname | Leary |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Birth Month | Nov |
| Birth Year | 1866 |
| Naturalization Status | Un |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Middlesex, Massachusetts
Spouse, age 43
Middlesex, Massachusetts · implied b. ~1867 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leary |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 13 |
| Children Born | 0 |
| Children Living | 0 |
| Year of Immigration | 1885 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Middlesex, Massachusetts
Spouse, age 52
Middlesex, Massachusetts · implied b. ~1868 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leary |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1887 |
| Birthplace (normalized) | ireland |
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 Leary across 3 US Census years (1900, 1910 and 1920) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Leary
Head · 1900 · age 34 · b. ~1866 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1900 US Federal Census — Suffolk, Massachusetts
Open full size
1900 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu684unit:0021)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Margaret Weaver | 7 | Daughter | — | New York |
| 52 | John J Weaver | 0 | Son | — | Massachusetts |
| 53 | John John | 69 | Father | Painter | Rhode Island |
| 54 | Patrick J Hennessy | 25 | Head | Marble Cutter | Massachusetts |
| 55 | Andrew B Hennessy | 22 | Brother | Teamster | Massachusetts |
| 56 | Robert Hennessy | 19 | Brother | Loose Slafter | Massachusetts |
| 57 | Katherine Hennessy | 23 | Sister | — | Massachusetts |
| 58 | John Hennessy | 16 | Brother | Errand Boy | Massachusetts |
| 59 | Nellie E Hennessy | 15 | Sister | At School | Massachusetts |
| 60 | Henry H Granger | 29 | Head | Waiter | England |
| 61 | Mary A Granger | 25 | Wife | — | Ireland |
| 62 | Ethel Granger | 2 | Daughter | — | Massachusetts |
| 63 | Harold Granger | 0 | Son | — | Massachusetts |
| 64 | Delia Sullivan | 22 | Sister in Law | — | Ireland |
| 65 | John B Sullivan | 23 | Brother in Law | Teamster | Massachusetts |
| 66 | Hannah Moran | 18 | Sister in Law | Laundress | Ireland |
| 67 | Katherine Connelly | 19 | Cousin | Laundress | Ireland |
| 68 | Philip Osenburg | 29 | Head | Tailor | Germany |
| 69 | Katherine Osenburg | 26 | Wife | — | Massachusetts |
| 70 | Annie Osenburg | 5 | Daughter | — | Massachusetts |
| 71 | Veronica Osenburg | 2 | Daughter | — | Massachusetts |
| 72 | Richard J Moore | 37 | Head | Weighing Of Coal | Massachusetts |
| 73 | Barbara Moore | 37 | Wife | — | Massachusetts |
| 74 | Richard J Jr Moore | 16 | Son | At School | Massachusetts |
| 75 | Mary Moore | 12 | Daughter | At School | Massachusetts |
| 76 | Rosanna Moore | 10 | Daughter | At School | Massachusetts |
| 77 | James Moore | 8 | Son | — | Massachusetts |
| 78 | Joseph Moore | 6 | Son | — | Massachusetts |
| 79 | Patrick Broach | 50 | Head | Laborer | Ireland |
| 80 | Margaret Broach | 18 | Daughter | — | Massachusetts |
| 81 | John Broach | 13 | Son | At School | Massachusetts |
| 82 | Michael Murphy | 29 | Boarder | Laborer | Ireland |
| 83 | John Murphy | 24 | Boarder | Day Clerk | Ireland |
| 84 | James Griffith | 30 | Boarder | Mason'S Tender | Ireland |
| 85 | Mary Leary THIS PERSON | 33 | Head | — | Ireland |
| 86 | Daniel Leary | 16 | Son | Tailors Apprentice | Massachusetts |
| 87 | James B Leary | 12 | Son | At School | Massachusetts |
| 88 | W J Dood | 40 | Brother | Boiler Helper | Ireland |
| 89 | Edward Mcmanus | 30 | Boarder | Cornice Maker | Ireland |
| 90 | John Nolan | 20 | Boarder | Rivet Heater | Massachusetts |
| 91 | John Welsh | 52 | Head | Teamster | Ireland |
| 92 | Maria Welsh | 50 | Wife | — | Ireland |
| 93 | Joseph Welsh | 25 | Son | Teamster | Massachusetts |
| 94 | John Welsh | 23 | Son | Motor-Man | Massachusetts |
| 95 | Mary Welsh | 22 | Daughter | Saleslady | Massachusetts |
| 96 | Sarah Welsh | 18 | Daughter | Saleslady | Massachusetts |
| 97 | Phillip Welsh | 15 | Son | Errand Boy | Massachusetts |
| 98 | Michael J Welsh | 13 | Son | At School | Massachusetts |
| 99 | Peter E Welsh | 9 | Son | — | Massachusetts |
| 100 | Katherine J Welsh | 7 | Daughter | — | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)