RM
Robert Mcdonald — 1930 US Census Record
Model Tree available1930 United States Federal Census · Walla Walla, Washington
Our Model Tree links this Robert Mcdonald across the 1920, 1930 and 1940 US Censuses in Walla Walla, Washington (XGBoost, ~Confirmed), with identified parents John & Laura — first a son (b.~1919), then head of a 6-person household.
Age 11
b. ~1919
Male
Son
Born: Washington
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Walla Walla, Washington |
| Surname | McDonald |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Maine |
| Mother's Birthplace | Washington |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Touchet Village Hill Precinct |
| Est. Birth Year | ~1919 |
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 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Madeline Mcdonald | Daughter | — | 14 | ~1916 |
| Norma Mcdonald | Daughter | — | 9 | ~1921 |
| John Mcdonald | Head | — | 59 | ~1871 |
| Robert Mcdonald | Son | — | 11 | ~1919 |
| Edwin Mcdonald | Son | — | 22 | ~1908 |
| Laura Mcdonald | Spouse | — | 55 | ~1875 |
Census Appearances
1920
Walla Walla, …
Son, age 2
Walla Walla, Washington · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Maine |
| Mother's Birthplace | Washington |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Walla Walla, …
Son, age 11
Walla Walla, Washington · implied b. ~1919 — 6 household members
| Surname | McDonald |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Maine |
| Mother's Birthplace | Washington |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Walla-Walla-County, Washington
Other, age 21
Walla-Walla-County, Washington · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Donald |
| Given Name | Robert |
| Relationship to Head | Brother-in-law |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Gardenat P. |
| 1935 Residence (County) | Walla Walla |
| Occupation | Farm labor |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 816 |
| Highest Grade | No 4 |
| 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 Robert Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Mcdonald (~0.92 confidence) and mother Laura Mcdonald (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mcdonald
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Laura Mcdonald
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Mcdonald
Son · 1930 · age 11 · b. ~1919 · Washington
★ You are viewing this record
Sibling
Norma Mcdonald
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Mcdonald
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Mcdonald
Sibling · 1930 · age 14
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 — Walla Walla, Washington
Open full size
1930 US Federal Census — Walla Walla, Washington
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2523unit:0535)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Sarah V. Crier | 59 | Head | — | Nebraska |
| 52 | Judge O. Crier | 22 | Son | Laborer | Kansas |
| 53 | Albert S. Renick | 40 | Head | Laborer | Oregon |
| 54 | Ada M. Renick | 32 | Wife | — | Iowa |
| 55 | Edith Renick | 7 | Daughter | — | Washington |
| 56 | Ethel Renick | 6 | Daughter | — | Washington |
| 57 | Roy Renick | 4 | Son | — | Washington |
| 58 | Roma Renick | 3 | Daughter | — | Washington |
| 59 | Cora A. Miller | 56 | Mother-in-law | — | Iowa |
| 60 | Frank Randolph | 39 | Head | Laborer | Washington |
| 61 | Lena Randolph | 31 | Wife | — | Washington |
| 62 | Clarence Randolph | 10 | Son | — | Washington |
| 63 | Edward Randolph | 6 | Son | — | Washington |
| 64 | Norman Randolph | 4 | Son | — | Washington |
| 65 | Spray E. West | 52 | Boarder | — | New York |
| 66 | Sarah E. Mercer | 81 | Boarder | — | Ohio |
| 67 | Buford E. Myers | 25 | Brother-in-law | Laborer | Washington |
| 68 | Alvin L. Palmer | 41 | Head | Laborer | Idaho |
| 69 | Bertha E. Palmer | 43 | Wife | — | Missouri |
| 70 | Hazel B. Palmer | 16 | Daughter | — | Washington |
| 71 | Bill Martin | 61 | Head | — | Nebraska |
| 72 | Pearl Martin | 24 | Daughter | Teacher | Washington |
| 73 | Lauretta Martin | 17 | Daughter | — | Washington |
| 74 | George T. Maxwell | 56 | Head | Owner | Kansas |
| 75 | Nellie Maxwell | 57 | Wife | — | Michigan |
| 76 | D. Joe Maxwell | 17 | Son | — | Washington |
| 77 | John A. Mcdonald | 59 | Head | Blacksmith | Maine |
| 78 | Laura M. Mcdonald | 55 | Wife | — | Washington |
| 79 | Edwin Mcdonald | 22 | Son | Laborer | Washington |
| 80 | Madeline Mcdonald | 14 | Daughter | — | Washington |
| 81 | Robert Mcdonald THIS PERSON | 11 | Son | — | Washington |
| 82 | Norma Mcdonald | 9 | Daughter | — | Washington |
| 83 | Percy Manival | 53 | Head | Repairman | Nebraska |
| 84 | Augusta Manival | 44 | Wife | — | Iowa |
| 85 | Lillie P. Manival | 20 | Son | Laborer | Washington |
| 86 | Lillie Manival | 17 | Daughter | — | Washington |
| 87 | Percy P. Manival | 6 | Son | — | Washington |
| 88 | Milton Renick | 36 | Head | Laborer | Washington |
| 89 | Lola Renick | 29 | Wife | — | Oregon |
| 90 | John T. Mirdon | 70 | Head | — | Missouri |
| 91 | Ellen C. Mirdon | 77 | Wife | — | Indiana |
| 92 | Clarence L. Cummins | 42 | Head | Commissioner | Washington |
| 93 | Bessie R. Cummins | 38 | Wife | — | Nebraska |
| 94 | Dorothy Cummins | 11 | Daughter | — | Washington |
| 95 | Helen Cummins | 8 | Daughter | — | Washington |
| 96 | Everett Cummins | 3 | Son | — | Washington |
| 97 | James H. Cummins | 77 | Head | — | Indiana |
| 98 | Emma Cummins | 74 | Wife | — | Ohio |
| 99 | Lee J. Colley | 34 | Head | Manager | Minnesota |
| 100 | Leonora Colley | 29 | Wife | — | Washington |
Pedigree Summary
Robert + 3 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 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)