MR
Mary Roach — 1920 US Census Record
Model Tree available1920 United States Federal Census · King, Washington
Our Model Tree links this Mary Roach across the 1920, 1930 and 1940 US Censuses in King, Washington (XGBoost, ~Confirmed), with identified parents Josiah & Mary — first a daughter (b.~1882), then head of a 6-person household.
Age 38
b. ~1882
Female
Daughter
Born: Washington
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | King, Washington |
| Surname | Roach |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Teacher |
| Industry | School |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Teacher |
| Township / Ward | City Of Seattle |
| Est. Birth Year | ~1882 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anna Roach | Daughter | — | 40 | ~1880 |
| Jean Roach | Daughter | — | 32 | ~1888 |
| Mary Roach | Daughter | — | 38 | ~1882 |
| Josiah Roach | Head | — | 73 | ~1847 |
| Josiah Roach | Son | — | 27 | ~1893 |
| Mary Roach | Spouse | — | 72 | ~1848 |
Census Appearances
1920
King, Washington
Daughter, age 38
King, Washington · implied b. ~1882 — 6 household members
| Surname | Roach |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Teacher |
| Industry | School |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Daughter, age 48
King, Washington · implied b. ~1882 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Rock |
| Given Name | Mary E |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Teacher |
| Industry | School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Other, age 58
King-County, Washington · implied b. ~1882 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Rock |
| Given Name | Mary C |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Secondary Teacher |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 2200 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Josiah Roach (~0.92 confidence) and mother Mary Rock (~0.92 confidence) and mother Mary Roach (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Josiah Roach
b. ~1847
Source father
● Household
· direct · ~0.92
Mother
Mary Rock
b. ~1848
Source mother
● Household
· direct · ~0.92
Mother
Mary Roach
b. ~1848
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Roach
Daughter · 1920 · age 38 · b. ~1882 · Washington
★ You are viewing this record
Sibling
Anna Roach
Sibling · 1920 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josiah Roach
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Roach
Sibling · 1920 · age 32
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 — King, Washington
Open full size
1920 US Federal Census — King, Washington
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1928unit:0065)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ellen M. Rollo | 46 | Wife | — | Minnesota |
| 52 | Wallace Mynatt | 51 | Head | Inspector | Oregon |
| 53 | Lottie E. Mynatt | 55 | Wife | — | Michigan |
| 54 | Arthur Mcinnis | 64 | Head | Laborer | Canada |
| 55 | Pearl Mcinnis | 25 | Daughter | Operator | Washington |
| 56 | Sarah Cooley | 43 | Daughter | Operator | Washington |
| 57 | Ingegerd Mcinnis | 22 | Son | Helper | Washington |
| 58 | Frank Rothwell | 23 | Roomer | Delivery | Montana |
| 59 | Steven L. Winget | 38 | Roomer | Engineer | Illinois |
| 60 | Lucretia Winget | 35 | Roomer | Clerk | Washington |
| 61 | Roy D. Dawes | 25 | Roomer | Signalist | Wisconsin |
| 62 | Earl F. Vatterman | 24 | Roomer | Salesman | Nebraska |
| 63 | Joseph F. Paden | 21 | Roomer | Engineer | Illinois |
| 64 | William H. Lynn | 19 | Roomer | Receiving Clerk | Nebraska |
| 65 | Emma S. Johnson | 42 | Head | Teacher | New York |
| 66 | Florence Miller | 54 | Boarder | — | Washington |
| 67 | Henrietta Poley | 47 | Boarder | Trained Nurse | Washington |
| 68 | Yoshiyuki Shioda | 25 | Servant | Housework | Japan |
| 69 | Josiah Roach | 73 | Head | — | Ireland |
| 70 | Mary A. Roach | 72 | Wife | — | Ireland |
| 71 | Anna C. Roach | 40 | Daughter | Teacher | Washington |
| 72 | Mary E. Roach THIS PERSON | 38 | Daughter | Teacher | Washington |
| 73 | Jean S. Roach | 32 | Daughter | Teacher | Washington |
| 74 | Josiah S. Roach | 27 | Son | Clerk | Washington |
| 75 | Belman Mccutcheon | 57 | Head | — | Iowa |
| 76 | Jessie Mccutcheon | 40 | Daughter | Librarian | Iowa |
| 77 | Florence Mccutcheon | 36 | Daughter | — | Iowa |
| 78 | Alan Mccutcheon | 33 | Son | Accountant | Iowa |
| 79 | Phoebe Mccutcheon | 25 | Daughter | — | Washington |
| 80 | Michael Montague | 67 | Head | Merchant | Ireland |
| 81 | Agnes M. Montague | 62 | Wife | — | Kentucky |
| 82 | John S. Montague | 26 | Son | Clerk | Kentucky |
| 83 | Albert B. Jordan | 64 | Brother-in-law | Laborer | Kentucky |
| 84 | Julia E. Jordan | 58 | Sister-in-law | — | Kentucky |
| 85 | Ira E. Lundy | 52 | Head | Packer | Canada |
| 86 | Mary Lundy | 41 | Wife | — | Wisconsin |
| 87 | Ira Lundy | 11 | Daughter | — | Washington |
| 88 | Oliver Lundy | 4 | Son | — | Washington |
| 89 | Meade Tipton | 26 | Roomer | Salesman | New Mexico |
| 90 | Leon V. Shirett | 43 | Head | Partner | New York |
| 91 | Lyda Shirett | 42 | Wife | — | Virginia |
| 92 | Richard Shirett | 18 | Son | — | Washington |
| 93 | Lloyd Shirett | 15 | Son | — | Washington |
| 94 | Helen Shirett | 12 | Daughter | — | Washington |
| 95 | Paul Shirett | 7 | Son | — | Washington |
| 96 | Margaret Downie | 28 | Servant | Housework | Canada |
| 97 | Michael Padden | 63 | Head | Accountant | Pennsylvania |
| 98 | Elsa M. Padden | 60 | Wife | — | Pennsylvania |
| 99 | James L. Padden | 35 | Son | Inspector | Washington |
| 100 | Stanley J. Padden | 34 | Son | Lawyer | Washington |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 3 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)