MR
Martha Ross — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Ada, Idaho
Our Model Tree links this Martha Ross across the 1910, 1920 and 1930 US Censuses in Ada, Idaho (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 3-person household.
Age 67
b. ~1863
Female
Head
Born: Germany
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Ada, Idaho |
| Surname | Ross |
| Given Name | Martha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1884 |
| Age at First Marriage | 22 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Township / Ward | Boise City |
| Est. Birth Year | ~1863 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Thomas Mccormick | Son | — | 7 | ~1923 |
| Martha Ross | Head | — | 67 | ~1863 |
| Margaret Mccormick | Daughter | — | 30 | ~1900 |
Census Appearances
1910
Ada, Idaho
Head, age 49
Ada, Idaho · implied b. ~1861 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Martha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Widowed |
| Birthplace | Germany |
| Children Born | 6 |
| Children Living | 5 |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1920
Ada, Idaho
Head, age 57
Ada, Idaho · implied b. ~1863 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Martha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Germany |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Germany |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | germany |
1930
Ada, Idaho
Head, age 67
Ada, Idaho · implied b. ~1863 — 3 household members
| Surname | Ross |
| Given Name | Martha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1884 |
| Age at First Marriage | 22 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 Martha Ross across 3 US Census years (1910, 1920 and 1930) in Ada, Idaho, using XGBoost record linkage.
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This person
Anchor record
Martha Ross
Head · 1930 · age 67 · b. ~1863 · Idaho
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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 — Ada, Idaho
Open full size
1930 US Federal Census — Ada, Idaho
Page Contents
50 people indexed on this census page (ia:1930:15thcensus395unit:0212)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Robert B Anderson | 77 | Head | Retired | England |
| 52 | Hannah Anderson | 74 | Wife | — | England |
| 53 | Margaret Anderson | 52 | Daughter | — | England |
| 54 | Charles B Gardner | 29 | Head | Express | Missouri |
| 55 | Neva Gardner | 28 | Wife | — | Missouri |
| 56 | Edith P Gardner | 3 | Daughter | — | Idaho |
| 57 | Kermit M Gardner | 1 | Daughter | — | Idaho |
| 58 | Ralph Gardner | 16 | Brother | — | Idaho |
| 59 | William T Trask | 70 | Head | Agent | West Virginia |
| 60 | Ida Trask | 54 | Wife | — | Pennsylvania |
| 61 | Martha Ross THIS PERSON | 67 | Head | — | Germany |
| 62 | Margaret Mccormick | 30 | Daughter | Stenographer | South Dakota |
| 63 | Thomas W Mccormick | 7 | Son | — | Michigan |
| 64 | Neva Abbey | 37 | Head | Stenographer | Idaho |
| 65 | Robert G Abbey | 12 | Son | — | Idaho |
| 66 | Adelyn Abbey | 11 | Daughter | — | Idaho |
| 67 | Neva G Abbey | 8 | Daughter | — | Idaho |
| 68 | Neva Lammers | 51 | Head | Clerk | Iowa |
| 69 | Mary E Lammers | 20 | Lodger | Clerk | Idaho |
| 70 | Martha Lammers | 22 | Lodger | Sec. | Idaho |
| 71 | Edith Wright | 25 | Lodger | Secretary | Idaho |
| 72 | John E Gasser | 52 | Head | Bookkeeper | Switzerland |
| 73 | Mary J Gasser | 48 | Wife | — | England |
| 74 | Walter J Gasser | 23 | Son | Laborer | Idaho |
| 75 | Wilfred G Gasser | 17 | Son | — | Idaho |
| 76 | John A Gasser | 12 | Son | — | Idaho |
| 77 | Peter M Sturdy | 50 | Head | Mechanic | Idaho |
| 78 | Eva S Sturdy | 47 | Wife | — | Missouri |
| 79 | Effie M Sturdy | 18 | Daughter | — | Idaho |
| 80 | Roy Donnelly | 45 | Head | Cable Splicer | Ohio |
| 81 | Bernice Donnelly | 43 | Wife | — | Utah |
| 82 | Charles Donnelly | 12 | Son | — | Idaho |
| 83 | Bernice Buckley | 15 | Step-daughter | Clerk | Utah |
| 84 | Lee Smith | 49 | Head | Mailier | Idaho |
| 85 | Mary Smith | 36 | Wife | — | Kansas |
| 86 | Edward Smith | 15 | Son | — | Idaho |
| 87 | Ronnie Smith | 12 | Daughter | — | Idaho |
| 88 | Valeria Smith | 7 | Daughter | — | Idaho |
| 89 | Joseph Sandmeyer | 42 | Head | Bookkeeper | Washington |
| 90 | Margaret A Sandmeyer | 18 | Daughter | — | Idaho |
| 91 | Ethel G Sandmeyer | 39 | Wife | — | Nebraska |
| 92 | Louise A Sandmeyer | 16 | Daughter | — | Idaho |
| 93 | Marian E Sandmeyer | 13 | Daughter | — | Idaho |
| 94 | Fred J Sandmeyer | 9 | Son | — | Idaho |
| 95 | Frank H Sandmeyer | 9 | Son | — | Idaho |
| 96 | Thomas R Sandmeyer | 5 | Son | — | Idaho |
| 97 | Ruth B Sandmeyer | 4 | Daughter | — | Idaho |
| 98 | Lawrence Sandmeyer | 2 | Son | — | Idaho |
| 99 | John P Sandmeyer | 0 | Son | — | Idaho |
| 100 | Gilbert Donaldson | 81 | Head | Electrician | Ireland |
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)