JM
John Mcdonald — 1930 US Census Record
Model Tree available1930 United States Federal Census · Chemung, New York
Our Model Tree links this John Mcdonald across the 1920, 1930 and 1940 US Censuses in Chemung, New York (XGBoost, ~Confirmed), with identified parents Harry & Harry — first a son (b.~1904), then head of a 4-person household.
Age 26
b. ~1904
Male
Son
Born: Delaware
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Chemung, New York |
| Surname | McDonald |
| Given Name | John D. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Moulder |
| Industry | Iron foundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Occupation | Moulder |
| Township / Ward | Horseheads Village |
| Est. Birth Year | ~1904 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Irene Mcdonald | Daughter | — | 18 | ~1912 |
| Harry Mcdonald | Head | — | 60 | ~1870 |
| John Mcdonald | Son | — | 26 | ~1904 |
| Mary Mcdonald | Spouse | — | 54 | ~1876 |
Census Appearances
1920
Chemung, New …
Son, age 16
Chemung, New York · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | New York |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
Chemung, New …
Son, age 26
Chemung, New York · implied b. ~1904 — 4 household members
| Surname | McDonald |
| Given Name | John D. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Moulder |
| Industry | Iron foundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
Head, age 36
Chemung-County, New York · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | MacDonald |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Horseheads |
| 1935 Residence (County) | Chemung |
| Occupation | Laborer |
| Industry | General Odd Jobs |
| Class of Worker | OA |
| Hours Worked | 3 |
| Income (1939) | 988 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 John Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Mcdonald (~0.92 confidence) and father Harry Mcdonald (~0.92 confidence) and mother Mary Mcdonald (~0.92 confidence) and mother Mary Mcdonald (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Mcdonald
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Harry Mcdonald
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Mary Mcdonald
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Mary Mcdonald
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mcdonald
Son · 1930 · age 26 · b. ~1904 · New York
★ You are viewing this record
Sibling
Irene Mcdonald
Sibling · 1930 · age 18
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 — Chemung, New York
Open full size
1930 US Federal Census — Chemung, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1415rs:0743)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Willett | 13 | son | None | Pennsylvania |
| 2 | John Jr. Willett | 6 | son | None | Pennsylvania |
| 3 | Harry Mcdonald | 60 | Head | Superintendent | Scotland |
| 4 | Mary Mcdonald | 54 | wife | None | Pennsylvania |
| 5 | Irene Mcdonald | 18 | daughter | None | New York |
| 6 | John D. Mcdonald THIS PERSON | 26 | son | Moulder | Delaware |
| 7 | Ambrose Carpenter | 76 | Head | Laborer | New York |
| 8 | Frances Carpenter | 76 | wife | None | New York |
| 9 | Erwin Cooper | 28 | Head | Salesman | Pennsylvania |
| 10 | Anna Cooper | 28 | wife | None | Pennsylvania |
| 11 | Evelyn Cooper | 6 | daughter | None | New York |
| 12 | Erwin Cooper | 5 | son | None | New York |
| 13 | Francis Cooper | 2 | daughter | None | Pennsylvania |
| 14 | Stanley Ettenburger | 31 | Head | Moulder | New York |
| 15 | Sadie Ettenburger | 37 | wife | None | New York |
| 16 | Kenneth Ettenburger | 10 | son | None | New York |
| 17 | Sheldon Ettenburger | 9 | son | None | New York |
| 18 | Doris Ettenburger | 6 | daughter | None | New York |
| 19 | Stanley Jr. Ettenburger | 3 | son | None | New York |
| 20 | Emeline Alverson | 74 | mother | None | New York |
| 21 | Guy Bowler | 38 | Head | Carpenter | Pennsylvania |
| 22 | Mildred Bowler | 30 | wife | None | Pennsylvania |
| 23 | Lewis Bowler | 11 | son | None | Pennsylvania |
| 24 | Scott Bowler | 9 | son | None | Pennsylvania |
| 25 | Helen Lewis | 21 | sister-in-law | Plat. Work | Pennsylvania |
| 26 | John Austin | 45 | Head | Mechanic | New York |
| 27 | Laura Austin | 49 | wife | None | Pennsylvania |
| 28 | Benjamin Trumble | 48 | Head | Laborer | New York |
| 29 | Lena Trumble | 49 | wife | None | Pennsylvania |
| 30 | Francis Trumble | 21 | son | Brick-Layer | Pennsylvania |
| 31 | Dorothy Trumble | 19 | daughter | None | New York |
| 32 | Jennie Trumble | 16 | daughter | None | New York |
| 33 | Benjamin Jr. Trumble | 14 | son | None | New York |
| 34 | Gertrude Trumble | 11 | daughter | None | New York |
| 35 | Bert Baldwin | 47 | Head | Fire Man | New York |
| 36 | Jennie Baldwin | 40 | wife | None | New York |
| 37 | John Baldwin | 27 | son | Laborer | Pennsylvania |
| 38 | George Baldwin | 22 | step-son | Laborer | New York |
| 39 | Alice Baldwin | 15 | daughter | None | New York |
| 40 | Glen Morrell | 30 | son-in-law | Truck Man | Pennsylvania |
| 41 | Fanny Morrell | 17 | daughter | None | New York |
| 42 | Oliver Eisenhart | 55 | Head | Capitalist | Pennsylvania |
| 43 | Louise Eisenhart | 54 | wife | None | New York |
| 44 | Mark Eisenhart | 21 | son | None | New York |
| 45 | Josephine Eisenhart | 18 | daughter | None | New York |
| 46 | Alice Eisenhart | 17 | daughter | None | New York |
| 47 | Judson Eisenhart | 16 | son | None | New York |
| 48 | Elizabeth Eisenhart | 15 | daughter | None | New York |
| 49 | Joseph Eisenhart | 13 | son | None | New York |
| 50 | Edward Eisenhart | 12 | son | None | New York |
Related Census Records
Pedigree Summary
John + 1 sibling
Gen 1 · 4 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)