MR
Mary Roach — 1920 US Census Record
Model Tree available1920 United States Federal Census · Merrimack, New Hampshire
Our Model Tree links this Mary Roach across the 1900, 1910 and 1920 US Censuses in Merrimack, New Hampshire (XGBoost, ~Confirmed), with identified parents Thos & Agnes — first a daughter (b.~1900), then head of a 7-person household.
Age 20
b. ~1900
Female
Daughter
Born: New Hampshire
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Merrimack, New Hampshire |
| Surname | Roach |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Hampshire |
| Additional Details | |
| Occupation | Time Keeper |
| Industry | Needle Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Time Keeper |
| Township / Ward | City Of Franklin |
| Est. Birth Year | ~1900 |
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.
7 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Kathleen Roach | Daughter | — | 15 | ~1905 |
| Helen Roach | Daughter | — | 17 | ~1903 |
| Mary Roach | Daughter | — | 20 | ~1900 |
| Agnes Roach | Head | — | 40 | ~1880 |
| John Roach | Son | — | 22 | ~1898 |
| Thomas Roach | Son | — | 5 | ~1915 |
| George Roach | Son | — | 10 | ~1910 |
Census Appearances
1900
Merrimack, New …
Other, age 1
Merrimack, New Hampshire · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roach |
| Given Name | Mary M |
| Relationship to Head | Dau |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Birth Month | June |
| Birth Year | 1899 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Hampshire |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1910
Merrimack, New …
Daughter, age 11
Merrimack, New Hampshire · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roach |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Hampshire |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
Merrimack, New …
Daughter, age 20
Merrimack, New Hampshire · implied b. ~1900 — 7 household members
| Surname | Roach |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New Hampshire |
| Occupation | Time Keeper |
| Industry | Needle Factory |
| Class of Worker | W |
| 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 Roach across 3 US Census years (1900, 1910 and 1920) in Merrimack, New Hampshire, using XGBoost record linkage. Identified parents: father Thos Roach (~0.92 confidence) and mother Agnes Roach (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thos Roach
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Agnes Roach
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Roach
Daughter · 1920 · age 20 · b. ~1900 · New Hampshire
★ You are viewing this record
Sibling
John Roach
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Roach
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Roach
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Roach
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Roach
Sibling · 1920 · age 15
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
1920 US Federal Census — Merrimack, New Hampshire
Open full size
1920 US Federal Census — Merrimack, New Hampshire
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1012unit:0746)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nellie C Bloomfield | 43 | Sister-in-law | — | Canada |
| 2 | James P Maloney | 44 | Head | Machinist | New Hampshire |
| 3 | Anna Maloney | 35 | Wife | — | Nova Scotia |
| 4 | John J Maloney | 17 | Son | — | Massachusetts |
| 5 | William A Maloney | 16 | Son | — | Massachusetts |
| 6 | James P Maloney | 15 | Son | — | Massachusetts |
| 7 | Dorothy E Maloney | 11 | Daughter | — | New Hampshire |
| 8 | Florence Maloney | 10 | Daughter | — | New Hampshire |
| 9 | Marjorie T Maloney | 7 | Daughter | — | New Hampshire |
| 10 | Ralph Maloney | 5 | Son | — | New Hampshire |
| 11 | Honorah Nevins | 71 | Boarder | — | Ireland |
| 12 | Frank J Ledger | 55 | Head | Straightener | Massachusetts |
| 13 | Isabel M Ledger | 35 | Wife | — | Maine |
| 14 | Gracia G Ledger | 12 | Daughter | — | New Hampshire |
| 15 | Pauline C Ledger | 8 | Daughter | — | New Hampshire |
| 16 | Evangeline Vermette | 30 | Brother | Laborer | Maine |
| 17 | Leon Vermette | 25 | Brother | Motor Scout | New Hampshire |
| 18 | Anna Vermette | 33 | Sister | Milliner | Maine |
| 19 | Annie M Vermette | 26 | Sister | Saleslady | Maine |
| 20 | George A Moulton | 50 | Head | Meat Cutter | New Hampshire |
| 21 | Addie E Moulton | 57 | Wife | — | New Hampshire |
| 22 | Bernice A Moulton | 29 | Daughter | — | New Hampshire |
| 23 | Esther R Moulton | 18 | Daughter | — | New Hampshire |
| 24 | Lucy Maine | 25 | Boarder | Stenographer | Connecticut |
| 25 | Sarah Beckman | 72 | Head | — | New Hampshire |
| 26 | Frank H Beckman | 44 | Son | Carder | New Hampshire |
| 27 | Benjamin Colby | 80 | Head | — | New Hampshire |
| 28 | Melvina S Colby | 82 | Sister | — | New Hampshire |
| 29 | Abbie Clark | 85 | Sister | — | New Hampshire |
| 30 | Peter J Claffey | 37 | Head | Spinner | Massachusetts |
| 31 | Mary K Claffey | 39 | Wife | — | Massachusetts |
| 32 | Elizabeth Claffey | 33 | Daughter | Seaming | Massachusetts |
| 33 | Francis J Claffey | 23 | Son | Clerk | Massachusetts |
| 34 | William A Claffey | 19 | Son | — | Massachusetts |
| 35 | George H Deno | 44 | Head | Grinder | New Hampshire |
| 36 | Flora R Deno | 39 | Wife | — | Massachusetts |
| 37 | Raymond A Deno | 13 | Son | — | New Hampshire |
| 38 | Agnes M Roach | 40 | Head | — | New Hampshire |
| 39 | John E Roach | 22 | Son | Needle Maker | New Hampshire |
| 40 | Mary M Roach THIS PERSON | 20 | Daughter | Time Keeper | New Hampshire |
| 41 | Helen B Roach | 17 | Daughter | Helper | New Hampshire |
| 42 | Kathleen A Roach | 15 | Daughter | — | New Hampshire |
| 43 | George W Roach | 10 | Son | — | New Hampshire |
| 44 | Thomas A Roach | 5 | Son | — | New Hampshire |
| 45 | John Cassidy | 73 | Head | Carder | Canada |
| 46 | Louise Cassidy | 69 | Wife | — | Canada |
| 47 | Arthur Dean | 34 | Son-in-law | Finisher | New Hampshire |
| 48 | Anna Dean | 30 | Daughter | — | Canada |
| 49 | Walter Cassidy | 38 | Son | — | Canada |
| 50 | Katherine Lynch | 49 | Head | — | Ireland |
Related Census Records
Pedigree Summary
Mary + 5 siblings
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)