RK
Ruby King — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Ruby King across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Harry & Ilo — first a daughter (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | King |
| Given Name | Ruby A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Some place |
| 1935 Residence (County) | Some place |
| Additional Details | |
| Occupation | Seamstress |
| Industry | Nipple Mfg. Co. |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 496 |
| Highest Grade | No H2 |
| 1935 Residence | Some place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Seamstress |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1917 |
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 1940 census.
| Name | Relation to head | Relative to Ruby | Age | Birth yr |
|---|---|---|---|---|
| Rosie King | Spouse | — | 40 | ~1900 |
| Ruby King | Daughter | — | 23 | ~1917 |
| Harry King | Head | — | 77 | ~1863 |
Census Appearances
1920
Polk, Iowa
Daughter, age 2
Polk, Iowa · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Daughter, age 12
Polk, Iowa · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Daughter, age 23
Polk-County, Iowa · implied b. ~1917 — 3 household members
| Surname | King |
| Given Name | Ruby A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Some place |
| 1935 Residence (County) | Some place |
| Occupation | Seamstress |
| Industry | Nipple Mfg. Co. |
| Class of Worker | PW |
| Hours Worked | 26 |
| Income (1939) | 496 |
| Highest Grade | No H2 |
| 1935 Residence | Some place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Ruby King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry King (~0.92 confidence) and father Ilo King (~0.92 confidence) and father Sip King (~0.92 confidence) and mother Rosa King (~0.92 confidence) and mother Roxana King (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry King
b. ~1863
Source father
● Household
· direct · ~0.92
Father
Ilo King
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Sip King
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Rosa King
b. ~1899
Source mother
● Household
· direct · ~0.92
Mother
Roxana King
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruby King
Daughter · 1940 · age 23 · b. ~1917 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01196-00828)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Martha Rees | 62 | Maid | Maid | Illinois |
| 2 | Auguste L. Pease | 71 | Head | — | Illinois |
| 3 | Millard Pease | 47 | Son | Carpenter | Illinois |
| 4 | Maude E. Messinger | 53 | Lodger | Practical Nurse | Iowa |
| 5 | Charles S. Barker | 62 | Head | Fire Marshal | Iowa |
| 6 | Elmira E. Barker | 57 | Wife | — | Iowa |
| 7 | Mary E. Creeko | 38 | Daughter | Bookkeeper | Iowa |
| 8 | Gladys M. Creeko | 18 | Granddaughter | File Clk. | Iowa |
| 9 | Geraldine E. Creeko | 16 | Granddaughter | — | Iowa |
| 10 | Mary E. Milligan | 79 | Mother-in-law | — | Iowa |
| 11 | George C. Beasley | 63 | Head | — | Iowa |
| 12 | Emma R. Beasley | 63 | Wife | — | Germany |
| 13 | Elsa L. Beasley | 34 | Daughter | — | Iowa |
| 14 | Foster L. Long | 51 | Head | Sta. Engineer | Ohio |
| 15 | Bessie M. Long | 52 | Wife | — | Iowa |
| 16 | Carole M. Long | 21 | Daughter | Office Clerk | Iowa |
| 17 | John L. Long | 19 | Son | File Clerk | Iowa |
| 18 | Marilyn P. Long | 17 | Daughter | — | Iowa |
| 19 | Robert D. Long | 13 | Son | — | Iowa |
| 20 | Richard H. Long | 11 | Son | — | Iowa |
| 21 | Harry R. Miller | 77 | Head | Bookkeeper | Iowa |
| 22 | Nellie J. Miller | 56 | Wife | — | Iowa |
| 23 | Harlan P. Gallagher | 25 | Head | Trucker | Iowa |
| 24 | Pearl I. Gallagher | 26 | Wife | — | Iowa |
| 25 | Betty H. Gallagher | 3 | Daughter | — | Iowa |
| 26 | Joyce E. Gallagher | 1 | Daughter | — | Iowa |
| 27 | Darrell R. Hartline | 9 | Step-son | — | Iowa |
| 28 | Edwin Browder | 52 | Head | — | Iowa |
| 29 | Eva M. Browder | 48 | Wife | — | Iowa |
| 30 | Raymond J. Deworth | 31 | Head | Teacher - Coach | Minnesota |
| 31 | Vera P. Deworth | 32 | Wife | — | Iowa |
| 32 | Thomas M. Drummon | 35 | Head | Chief Clerk | Iowa |
| 33 | Ruth L. Drummon | 31 | Wife | — | Iowa |
| 34 | Thomas L. Drummon | 8 | Son | — | Iowa |
| 35 | Kenneth J. Drummon | 6 | Son | — | Iowa |
| 36 | Laurin H. Dahls | 37 | Head | Night Watchman | Iowa |
| 37 | Helen J. Dahls | 36 | Wife | Presswoman | Illinois |
| 38 | Harry King | 77 | Head | Painter | Iowa |
| 39 | Rosie C. King | 40 | Wife | Packer | Iowa |
| 40 | Ruby A. King THIS PERSON | 23 | Daughter | Seamstress | Iowa |
Pedigree Summary
Ruby
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)