MC
Mary Callahan — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Merrimack, New Hampshire
Our Model Tree links this Mary Callahan across the 1900 and 1910 US Censuses in Merrimack, New Hampshire (XGBoost, ~Confirmed) — first a daughter (b.~1891), then head of a 10-person household.
Age 19
b. ~1891
Female
Daughter
Born: New Hampshire
Single
1910 Census Record Details
| Census Year | 1910 |
| Location | Merrimack, New Hampshire |
| Surname | Callahan |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Additional Details | |
| Occupation | Book Binder |
| Industry | Rumford Press |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Book Binder |
| Township / Ward | Concord City |
| Est. Birth Year | ~1891 |
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.
10 people recorded at the same address in the 1910 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Callahan | Daughter | — | 19 | ~1891 |
| Eugene Callahan | Head | — | 52 | ~1858 |
| Anna Foley | Other | — | 70 | ~1840 |
| James Murphy | Other | — | 47 | ~1863 |
| Henry Callahan | Son | — | 10 | ~1900 |
| James Callahan | Son | — | 12 | ~1898 |
| William Callahan | Son | — | 14 | ~1896 |
| John Callahan | Son | — | 16 | ~1894 |
| Eugene Callahan | Son | — | 20 | ~1890 |
| Hannah Callahan | Spouse | — | 52 | ~1858 |
Census Appearances
1900
Merrimack, New …
Daughter, age 10
Merrimack, New Hampshire · implied b. ~1890 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Birth Month | July |
| Birth Year | 1890 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | At school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1910
Merrimack, New …
Daughter, age 19
Merrimack, New Hampshire · implied b. ~1891 — 10 household members
| Surname | Callahan |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | Book Binder |
| Industry | Rumford Press |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Callahan across 2 US Census years (1900 and 1910) in Merrimack, New Hampshire, using XGBoost record linkage.
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This person
Anchor record
Mary Callahan
Daughter · 1910 · age 19 · b. ~1891 · New Hampshire
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Sibling
William Callahan
Sibling · 1910 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Callahan
Sibling · 1910 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Callahan
Sibling · 1910 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Callahan
Sibling · 1910 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Callahan
Sibling · 1910 · age 20
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
1910 US Federal Census — Merrimack, New Hampshire
Open full size
1910 US Federal Census — Merrimack, New Hampshire
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po864unit:0894)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Enos E Elliott | 25 | Head | Carpenter | New Hampshire |
| 2 | Mary M Elliott | 30 | Wife | — | Canada (Eng) |
| 3 | — | None | — | — | — |
| 4 | Enos T Morrison | 64 | Head | Iron Moulder | New Hampshire |
| 5 | Mary L Morrison | 62 | Wife | — | New York |
| 6 | Albert A Hall | 47 | Step son | Clerk | New Hampshire |
| 7 | William W Kennedy | 52 | Head | Letter Carrier | New Hampshire |
| 8 | Eva M Kennedy | 48 | Wife | — | New Hampshire |
| 9 | Wallace S Kennedy | 24 | Son | Shipping Clerk | New Hampshire |
| 10 | Carl D Kennedy | 23 | Son | Chemist | New Hampshire |
| 11 | Robert N Kennedy | 17 | Son | — | New Hampshire |
| 12 | Thomas J Foley | 29 | Head | Plumber | New Hampshire |
| 13 | Florence M Foley | 28 | Wife | — | Canada (Eng) |
| 14 | Mary A Clark | 60 | Boarder | — | New York |
| 15 | Isaac G Huneau | 38 | Head | Steam Fitter | Massachusetts |
| 16 | Rose Huneau | 36 | Wife | — | Canada (Fr) |
| 17 | Rose M Huneau | 16 | Daughter | Book Binder | New Hampshire |
| 18 | Blanche Huneau | 9 | Daughter | — | New Hampshire |
| 19 | Eugene O Callahan | 52 | Head | Brakeman | New Hampshire |
| 20 | Hannah E Callahan | 52 | Wife | — | New Hampshire |
| 21 | Eugene M Callahan | 20 | Son | Cigar Maker | New Hampshire |
| 22 | Mary E Callahan THIS PERSON | 19 | Daughter | Book Binder | New Hampshire |
| 23 | John P Callahan | 16 | Son | — | New Hampshire |
| 24 | William Callahan | 14 | Son | — | New Hampshire |
| 25 | James Callahan | 12 | Son | — | New Hampshire |
| 26 | Henry Callahan | 10 | Son | — | New Hampshire |
| 27 | James H Murphy | 47 | Brother-in-law | Laborer | Ireland |
| 28 | Anna M Foley | 70 | Cousin | — | Ireland |
| 29 | Roy Brunelle | 25 | Head | Book Keeper | New Hampshire |
| 30 | Martha Brunelle | 19 | Wife | — | England |
| 31 | Albert G Foster | 47 | Head | Iron Founder | Maine |
| 32 | Susie G Foster | 45 | Wife | — | Massachusetts |
| 33 | Edward D Stearns | 24 | Son-in-law | Iron Founder | New Hampshire |
| 34 | Ethel M Stearns | 22 | Daughter | — | New Hampshire |
| 35 | Margaret M Hillsborough | 59 | Head | Own Income | New Hampshire |
| 36 | Leon W Hillsborough | 33 | Son | Contractor | New Hampshire |
| 37 | Grace M Hillsborough | 31 | Daughter | Tailoress | New Hampshire |
| 38 | Charles C Hillsborough | 29 | Son | Silver Smith | New Hampshire |
| 39 | Robert J Rooney | 58 | Head | Laborer | New Hampshire |
| 40 | Helen J Rooney | 55 | Wife | — | New Hampshire |
| 41 | Charles J Mcdonald | 49 | Head | Stone Cutter | New Hampshire |
| 42 | Margaret A Mcdonald | 45 | Wife | Laundress | New Hampshire |
| 43 | Addie G Mcdonald | 25 | Daughter | School Teacher | New Hampshire |
| 44 | Katherine A Mcdonald | 23 | Daughter | Stenographer | New Hampshire |
| 45 | Charles J Jr Mcdonald | 22 | Son | Silver Smith | New Hampshire |
| 46 | Daniel E Mcdonald | 19 | Son | Steam Fitter | New Hampshire |
| 47 | James F Mcdonald | 14 | Son | — | New Hampshire |
| 48 | William Mcdonald | 12 | Son | — | New Hampshire |
| 49 | Edward G Mcdonald | 10 | Son | — | New Hampshire |
| 50 | Mary D Mcdonald | 7 | Daughter | — | New Hampshire |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)