MK
Mary Knight — 1920 US Census Record
Model Tree available1920 United States Federal Census · Keokuk, Iowa
Our Model Tree links this Mary Knight across the 1910, 1920 and 1930 US Censuses in Keokuk, Iowa (XGBoost, ~Confirmed), with identified parents F & Frank — first a daughter (b.~1910), then head of a 9-person household.
Age 10
b. ~1910
Female
Daughter
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Keokuk, Iowa |
| Surname | Knight |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Van Buren Township |
| 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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ethel Knight | Daughter | — | 11 | ~1909 |
| Mary Knight | Daughter | — | 10 | ~1910 |
| Lucile Knight | Daughter | — | 1 | ~1919 |
| Winifred Knight | Daughter | — | 6 | ~1914 |
| Helen Knight | Daughter | — | 12 | ~1908 |
| James Knight | Head | — | 39 | ~1881 |
| Ervin Langham | Other | — | 21 | ~1899 |
| Francis Knight | Son | — | 8 | ~1912 |
| Katherine Knight | Spouse | — | 31 | ~1889 |
Census Appearances
1910
Keokuk, Iowa
Daughter, age 1
Keokuk, Iowa · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | Mattie M. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Keokuk, Iowa
Daughter, age 10
Keokuk, Iowa · implied b. ~1910 — 9 household members
| Surname | Knight |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Keokuk, Iowa
Daughter, age 20
Keokuk, Iowa · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knight |
| Given Name | Mabel |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| 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 |
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 Mary Knight across 3 US Census years (1910, 1920 and 1930) in Keokuk, Iowa, using XGBoost record linkage. Identified parents: father F Knight (~0.92 confidence) and father Frank Knight (~0.92 confidence) and mother Gertrude Knight (~0.92 confidence) and father James Knight (~0.92 confidence) and mother Luenda Knight (~0.92 confidence) and mother Katherine Knight (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
F Knight
b. ~1863
Source father
● Household
· direct · ~0.92
Father
Frank Knight
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Gertrude Knight
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
James Knight
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Luenda Knight
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Katherine Knight
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Knight
Daughter · 1920 · age 10 · b. ~1910 · Iowa
★ You are viewing this record
Sibling
Francis Knight
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winifred Knight
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Knight
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucile Knight
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Knight
Sibling · 1920 · age 11
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
1920 US Federal Census — Keokuk, Iowa
Open full size
1920 US Federal Census — Keokuk, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu497unit:0352)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Roseanna Beardson | 21 | Wife | — | Iowa |
| 52 | James Knight | 39 | Head | Farmer | Iowa |
| 53 | Katherine B Knight | 31 | Wife | — | Iowa |
| 54 | Helen Knight | 12 | Daughter | — | Iowa |
| 55 | Mary E Knight THIS PERSON | 10 | Daughter | — | Iowa |
| 56 | Ethel M Knight | 11 | Daughter | — | Iowa |
| 57 | Francis H Knight | 8 | Son | — | Iowa |
| 58 | Winifred Knight | 6 | Daughter | — | Iowa |
| 59 | Lucile Knight | 1 | Daughter | — | Iowa |
| 60 | Ervin Langham | 21 | Hired Hand | Laborer | Pennsylvania |
| 61 | Dean C Bowers | 37 | Head | Farmer | Ohio |
| 62 | Lulu Bowers | 30 | Wife | — | Iowa |
| 63 | Mildred Bowers | 8 | Daughter | — | Iowa |
| 64 | Helen Bowers | 7 | Daughter | — | Iowa |
| 65 | Justus Ritzman | 65 | Head | Farmer | Russia |
| 66 | Helena Ritzman | 36 | Daughter | — | Iowa |
| 67 | William Ritzman | 33 | Son | Laborer | Iowa |
| 68 | John Ritzman | 31 | Son | Farmer | Iowa |
| 69 | Charley Ritzman | 29 | Son | Laborer | Iowa |
| 70 | Clara Ritzman | 27 | Daughter | — | Iowa |
| 71 | Herbert Ritzman | 22 | Son | Laborer | Iowa |
| 72 | Walter Van Auken | 49 | Head | Farmer | Iowa |
| 73 | Emma Van Auken | 31 | Wife | — | Iowa |
| 74 | Laurelia Van Auken | 12 | Daughter | — | Iowa |
| 75 | Samuel Downs | 66 | Head | Farmer | Pennsylvania |
| 76 | Margaret Downs | 66 | Wife | — | Ohio |
| 77 | Joseph J Downs | 35 | Son | Farmer | Iowa |
| 78 | Thomas H Downs | 30 | Son | Farmer | Iowa |
| 79 | Daniel E Downs | 25 | Son | Farmer | Iowa |
| 80 | James Dunn | 33 | Head | Farmer | Iowa |
| 81 | Edna Dunn | 21 | Wife | — | Iowa |
| 82 | Joseph Dunn | 2 | Son | — | Iowa |
| 83 | Adam A Hayes | 28 | Head | Farmer | Iowa |
| 84 | Olive Hayes | 22 | Wife | — | Iowa |
| 85 | Betty Hayes | 0 | Daughter | — | Iowa |
| 86 | L J M Parks | 72 | Head | Farmer | Indiana |
| 87 | Nell Parks | 60 | Niece | — | Iowa |
| 88 | Joseph W Forney | 32 | Head | Farmer | Illinois |
| 89 | Frances Forney | 27 | Wife | — | Iowa |
| 90 | Margaret Forney | 10 | Daughter | — | Illinois |
| 91 | David Forney | 7 | Son | — | Illinois |
| 92 | Genevieve Forney | 5 | Daughter | — | Iowa |
| 93 | Bernard Forney | 3 | Son | — | Iowa |
| 94 | Frances Poynter | 62 | Mother in Law | — | U S |
| 95 | John A Rhodes | 33 | Head | Farmer | Iowa |
| 96 | Martha Rhodes | 69 | Mother | — | Indiana |
| 97 | William Myers | 31 | Head | Farmer | Iowa |
| 98 | Effie Myers | 29 | Wife | — | Iowa |
| 99 | Robert Schultz | 40 | Head | Farmer | Iowa |
| 100 | Emma Schultz | 36 | Wife | — | Iowa |
Pedigree Summary
Mary + 5 siblings
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)