DM
Donald Martin — 1930 US Census Record
Model Tree available1930 United States Federal Census · Northampton, Pennsylvania
Our Model Tree links this Donald Martin across the 1910, 1920 and 1930 US Censuses in Northampton, Pennsylvania (XGBoost, ~Confirmed), with identified parents Grace & Russel — first a son (b.~1910), then head of a 5-person household.
Age 20
b. ~1910
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Northampton, Pennsylvania |
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Occupation | Machinist |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Machinist |
| Township / Ward | Wilson Borough |
| Est. Birth Year | ~1910 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Donald Martin | Son | — | 20 | ~1910 |
| Grace Martin | Spouse | — | 45 | ~1885 |
| Mildred Martin | Daughter | — | 12 | ~1918 |
| Thomas Martin | Head | — | 43 | ~1887 |
| Marjorie Martin | Daughter | — | 16 | ~1914 |
Census Appearances
1910
Northampton, Pennsylvania
Other, age
Northampton, Pennsylvania · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Northampton, Pennsylvania
Son, age 10
Northampton, Pennsylvania · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Donal |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Northampton, Pennsylvania
Son, age 20
Northampton, Pennsylvania · implied b. ~1910 — 5 household members
| Surname | Martin |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Occupation | Machinist |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Donald Martin across 3 US Census years (1910, 1920 and 1930) in Northampton, Pennsylvania, using XGBoost record linkage. Identified parents: mother Grace Martin (~0.92 confidence) and father Russel Martin (~0.92 confidence) and father Thomas Martin (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Grace Martin
b. ~1885
Source mother
● Household
· direct · ~0.92
Father
Russel Martin
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Thomas Martin
b. ~1887
Source father
● Household
· direct · ~0.92
This person
Anchor record
Donald Martin
Son · 1930 · age 20 · b. ~1910 · Pennsylvania
★ You are viewing this record
Sibling
Mildred Martin
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Martin
Sibling · 1930 · age 16
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
1930 US Federal Census — Northampton, Pennsylvania
Open full size
1930 US Federal Census — Northampton, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2088:1153)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry Rickenbacker | 39 | Head | Night Agent | Pennsylvania |
| 2 | Mabel Rickenbacker | 41 | Wife | — | Pennsylvania |
| 3 | George Geyer | 42 | Head | Crane Op | New Jersey |
| 4 | Ida Geyer | 32 | Wife | — | Pennsylvania |
| 5 | Elizabeth Geyer | 14 | Daughter | — | Pennsylvania |
| 6 | Gladys Geyer | 13 | Daughter | — | Pennsylvania |
| 7 | William Geyer | 8 | Son | — | Pennsylvania |
| 8 | Joyce Geyer | 5 | Son | — | Pennsylvania |
| 9 | Kenneth Geyer | 2 | Son | — | Pennsylvania |
| 10 | Harvey Marguardes | 39 | Head | Workman | Pennsylvania |
| 11 | Clara Marguardes | 41 | Wife | — | Pennsylvania |
| 12 | Ruth Marguardes | 15 | Daughter | — | Pennsylvania |
| 13 | John Marguardes | 11 | Son | — | Pennsylvania |
| 14 | Margaret Marguardes | 13 | Daughter | — | Pennsylvania |
| 15 | Esther Marguardes | 9 | Daughter | — | Pennsylvania |
| 16 | Harvey Marguardes | 6 | Son | — | Pennsylvania |
| 17 | Mildred Marguardes | 2 | Son | — | Pennsylvania |
| 18 | John Sweger | 42 | Head | Inspector | Pennsylvania |
| 19 | Katherine Sweger | 39 | Wife | — | Pennsylvania |
| 20 | Stanley Sweger | 19 | Son | Knitter | Pennsylvania |
| 21 | Elizabeth Sweger | 17 | Daughter | — | Pennsylvania |
| 22 | Alice Sweger | 10 | Son | — | Pennsylvania |
| 23 | Loyd Sweger | 4 | Son | — | Pennsylvania |
| 24 | Harry Eick | 40 | Head | Laborer | Pennsylvania |
| 25 | Ella Eick | 37 | Wife | — | Pennsylvania |
| 26 | Marie Eick | 13 | Daughter | — | Pennsylvania |
| 27 | Elmer Eick | 10 | Son | — | Pennsylvania |
| 28 | Margaret Eick | 8 | Daughter | — | Pennsylvania |
| 29 | Billy Eick | 5 | Son | — | Pennsylvania |
| 30 | Earl Deep | 39 | Head | Laborer | Pennsylvania |
| 31 | Alice Deep | 36 | Wife | — | Pennsylvania |
| 32 | Mamie Deep | 12 | Daughter | — | Pennsylvania |
| 33 | Ethel Deep | 5 | Daughter | — | Pennsylvania |
| 34 | Alfred Garrison | 32 | Head | Plumber | New Jersey |
| 35 | Helen Garrison | 32 | Wife | Musician | Pennsylvania |
| 36 | Frank Dyer | 45 | Head | Traffic Manager | Massachusetts |
| 37 | Bess Dyer | 34 | Wife | — | Indiana |
| 38 | Charles Snyder | 56 | Head | Moulder | Pennsylvania |
| 39 | Lillie Snyder | 46 | Wife | — | Pennsylvania |
| 40 | William Snyder | 25 | Son | Linotype Op | Pennsylvania |
| 41 | Marie Snyder | 19 | Daughter | — | Pennsylvania |
| 42 | Thomas Martin | 43 | Head | Moulder | Pennsylvania |
| 43 | Grace Martin | 45 | Wife | — | New Jersey |
| 44 | Donald Martin THIS PERSON | 20 | Son | Machinist | Pennsylvania |
| 45 | Marjorie Martin | 16 | Daughter | Servant | Pennsylvania |
| 46 | Mildred Martin | 12 | Daughter | — | Pennsylvania |
| 47 | Charles Solomon | 36 | Head | Superintendent | Pennsylvania |
| 48 | Emily Solomon | 33 | Wife | — | Pennsylvania |
| 49 | Frank Solomon | 9 | Son | — | Pennsylvania |
| 50 | Lois Solomon | 5 | Daughter | — | Pennsylvania |
Pedigree Summary
Donald + 2 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 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)