MP
Mary Pierce — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Grays Harbor, Washington
Our Model Tree links this Mary Pierce across the 1920 and 1930 US Censuses in Grays Harbor, Washington (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 7-person household.
Age 30
b. ~1900
Female
Spouse
Born: West Virginia
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Grays Harbor, Washington |
| Surname | Pierce |
| Given Name | Mary D |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | West Virginia |
| Age at First Marriage | 18 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
| Township / Ward | Aberdeen City |
| 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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Inez Pierce | Daughter | — | 6 | ~1924 |
| Ruth Pierce | Daughter | — | 11 | ~1919 |
| Margaret Pierce | Daughter | — | 9 | ~1921 |
| Thaddeus Pierce | Daughter | — | 8 | ~1922 |
| Baby Pierce | Daughter | — | ~1930 | |
| Thaddeus Pierce | Head | — | 31 | ~1899 |
| Mary Pierce | Spouse | — | 30 | ~1900 |
Census Appearances
1920
Pacific, Washington
Spouse, age 19
Pacific, Washington · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pierce |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Married |
| Birthplace | West Virginia |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1930
Grays Harbor, …
Spouse, age 30
Grays Harbor, Washington · implied b. ~1900 — 7 household members
| Surname | Pierce |
| Given Name | Mary D |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | West Virginia |
| Age at First Marriage | 18 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
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 Pierce across 2 US Census years (1920 and 1930) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Pierce
Spouse · 1930 · age 30 · b. ~1900 · Washington
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Grays Harbor, Washington
Open full size
1930 US Federal Census — Grays Harbor, Washington
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2488unit:0092)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mike Chauson | 43 | Boarder | Manager | Norway |
| 2 | Eric Hurtig | 36 | Head | Longshoreman | Finland |
| 3 | Selma Hurtig | 36 | Wife | — | Finland |
| 4 | Richard Hurtig | 13 | Son | — | Washington |
| 5 | John Gibson | 28 | Head | Longshoreman | Finland |
| 6 | Lempi J Gibson | 25 | Wife | Waitress | Montana |
| 7 | Oliver L Montgomery | 30 | Head | School Teacher | Missouri |
| 8 | Lola M Montgomery | 31 | Wife | School Teacher | Washington |
| 9 | Donald J Montgomery | 4 | Son | — | Colorado |
| 10 | Mary D Parker | 55 | Mother-in-law | — | Missouri |
| 11 | Anton Joradich | 44 | Head | Laborer | Yugoslavia |
| 12 | Katie Joradich | 33 | Wife | — | Yugoslavia |
| 13 | Anna Joradich | 5 | Daughter | — | Washington |
| 14 | David H Mccoy | 64 | Head | Porter | Missouri |
| 15 | Bertha P Mccoy | 40 | Wife | — | Bohemia-Prague |
| 16 | Ray H Mccoy | 21 | Son | Bell Boy | Washington |
| 17 | Margaret Mccoy | 14 | Daughter | Saleslady | Washington |
| 18 | Carl E Mccoy | 13 | Son | — | Washington |
| 19 | Freida R Mccoy | 11 | Daughter | — | Washington |
| 20 | David F Mccoy | 8 | Son | — | Washington |
| 21 | Betty M Mccoy | 5 | Daughter | — | Washington |
| 22 | Bobby Mccoy | 3 | Son | — | Washington |
| 23 | Robert H Lofgren | 48 | Head | Faller | Sweden |
| 24 | Hannah S Lofgren | 40 | Wife | — | Sweden |
| 25 | Shorty Marten | 50 | Head | Odd Jobs | Russia |
| 26 | Milton S Rood | 70 | Roomer | Laborer | Michigan |
| 27 | Hulda S Rood | 70 | Roomer | — | Wisconsin |
| 28 | Thaddeus W Pierce | 31 | Head | Gunsmith | Oklahoma |
| 29 | Mary D Pierce THIS PERSON | 30 | Wife | — | West Virginia |
| 30 | Ruth J Pierce | 11 | Daughter | — | Washington |
| 31 | Margaret L Pierce | 9 | Daughter | — | Washington |
| 32 | Thaddeus D Pierce | 8 | Daughter | — | Washington |
| 33 | Inez L Pierce | 6 | Daughter | — | Washington |
| 34 | Baby Pierce | 0 | Daughter | — | Washington |
| 35 | Lawrence Estrada | 43 | Head | Fireman | California |
| 36 | Bessie L Estrada | 41 | Wife | — | Maine |
| 37 | Reid E Estrada | 7 | Daughter | — | Washington |
| 38 | Richard L Estrada | 6 | Son | — | Washington |
| 39 | Robert F Estrada | 4 | Son | — | Washington |
| 40 | Antone Richard | 46 | Head | Laborer | California |
| 41 | Emma Richard | 46 | Wife | — | Illinois |
| 42 | Antoinette Richard | 9 | Daughter | — | Washington |
| 43 | Richard V Richard | 7 | Son | — | Washington |
| 44 | Karl Pettersen | 34 | Head | Laborer | Norway |
| 45 | Olene C Pettersen | 29 | Wife | — | Norway |
| 46 | Christian L Pettersen | 7 | Son | — | Norway |
| 47 | Ivar Olsen | 41 | Roomer | Laborer | Norway |
| 48 | Angie M Armstrong | 70 | Head | Practical Nurse | Vermont |
| 49 | Frances Boyer | 33 | Boarder | — | Washington |
| 50 | Frank Carson | 57 | Roomer | Logger | Wisconsin |
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)