MD
Margaret Davis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Madison, Illinois
Our Model Tree links this Margaret Davis across the 1910, 1920 and 1930 US Censuses in Madison, Illinois (XGBoost, ~Confirmed), with identified parents Mabel & John — first a daughter (b.~1909), then head of a 3-person household.
Age 21
b. ~1909
Female
Daughter
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Madison, Illinois |
| Surname | Davis |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Collinsville Town |
| Est. Birth Year | ~1909 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Davis | Daughter | — | 21 | ~1909 |
| John Davis | Head | — | 56 | ~1874 |
| Mabel Davis | Spouse | — | 57 | ~1873 |
Census Appearances
1910
Madison, Illinois
Daughter, age 1
Madison, Illinois · implied b. ~1909 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Madison, Illinois
Daughter, age 11
Madison, Illinois · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Madison, Illinois
Daughter, age 21
Madison, Illinois · implied b. ~1909 — 3 household members
| Surname | Davis |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Margaret Davis across 3 US Census years (1910, 1920 and 1930) in Madison, Illinois, using XGBoost record linkage. Identified parents: mother Mabel Davis (~0.92 confidence) and father John Davis (~0.92 confidence) and father John Davis (~0.92 confidence) and father John Davis (~0.92 confidence) and mother Mabel Davis (~0.92 confidence) and mother Isabel Davis (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mabel Davis
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
John Davis
b. ~1874
Source father
● Household
· direct · ~0.92
Father
John Davis
b. ~1874
Source father
● Household
· direct · ~0.92
Father
John Davis
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Mabel Davis
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Isabel Davis
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Davis
Daughter · 1930 · age 21 · b. ~1909 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Madison, Illinois
Open full size
1930 US Federal Census — Madison, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel541:0143)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Daisy L Gamba | 11 | Daughter | — | Arkansas |
| 52 | Lola M Gamba | 7 | Daughter | — | Arkansas |
| 53 | Bessie J Gamba | 1 | Daughter | — | Illinois |
| 54 | George Harper | 43 | Head | Salesman | England |
| 55 | Amanda Harper | 43 | Wife | — | Illinois |
| 56 | Woodrow Harper | 17 | Son | — | Illinois |
| 57 | Richard Krupp | 54 | Head | Teamster | Illinois |
| 58 | Hildegard M Krupp | 48 | Wife | — | Illinois |
| 59 | Howard A Krupp | 20 | Son | Laborer | Illinois |
| 60 | Bernice G Krupp | 17 | Daughter | Inspector | Illinois |
| 61 | Richard M Krupp | 15 | Son | — | Illinois |
| 62 | Arthur Cumberland | 37 | Head | Laborer | Illinois |
| 63 | Emma B Cumberland | 37 | Wife | — | Illinois |
| 64 | Della D Cumberland | 4 | Daughter | — | Illinois |
| 65 | Pete Fenner | 77 | Boarder | — | Illinois |
| 66 | William M Brooks | 47 | Head | Laborer | England |
| 67 | Mary E Brooks | 32 | Wife | — | Arkansas |
| 68 | Arthur D Brooks | 16 | Son | — | Arkansas |
| 69 | Kathryn P Brooks | 13 | Daughter | — | Arkansas |
| 70 | Joseph M Brooks | 10 | Son | — | Illinois |
| 71 | William Brooks | 24 | Son | Mechanic | Illinois |
| 72 | George Brooks | 24 | Brother | Sheet Metal | Arkansas |
| 73 | John A Davis | 56 | Head | — | Illinois |
| 74 | Mabel Davis | 57 | Wife | — | Illinois |
| 75 | Margaret Davis THIS PERSON | 21 | Daughter | — | Illinois |
| 76 | Willie Sumner | 24 | Head | Mechanic | Illinois |
| 77 | Thelma M Sumner | 20 | Wife | — | Illinois |
| 78 | Willie D Sumner | 4 | Son | — | Illinois |
| 79 | Linnie Sumner | 58 | Head | — | Kentucky |
| 80 | Josephine Sumner | 16 | Daughter | Laborer | Kentucky |
| 81 | Josephine Sumner | 16 | Daughter | Folder | Kentucky |
| 82 | Owen S Shelby | 37 | Head | Signal Man | Missouri |
| 83 | Aileen L Shelby | 34 | Wife | — | Missouri |
| 84 | Helen E Shelby | 15 | Daughter | Seamstress | Missouri |
| 85 | Robert C Shelby | 12 | Son | — | Missouri |
| 86 | Kathryn V Shelby | 10 | Daughter | — | Missouri |
| 87 | Rosemary Shelby | 5 | Daughter | — | Missouri |
| 88 | Libera Borguetti | 41 | Head | — | Italy |
| 89 | Louis Borguetti | 24 | Son | Proprietor | Illinois |
| 90 | Lena Borguetti | 22 | Daughter | Packer | Illinois |
| 91 | Dante Borguetti | 18 | Son | — | Illinois |
| 92 | Leo Borguetti | 10 | Son | — | Illinois |
| 93 | Robert S. W. Trevor | 52 | Head | Miner | England |
| 94 | Margaret A Trevor | 47 | Wife | — | Ohio |
| 95 | Robert E Trevor | 19 | Son | Plater | Illinois |
| 96 | George A Trevor | 14 | Son | — | Illinois |
| 97 | James Trevor | 11 | Son | — | Illinois |
| 98 | Herbert F Trevor | 7 | Son | — | Illinois |
| 99 | William J Trevor | 7 | Son | — | Illinois |
| 100 | Ursula U Trevor | 5 | Daughter | — | Illinois |
Related Census Records
Pedigree Summary
Margaret
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 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)