LD
Lillian Davis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Lillian Davis across the 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Ernest & Florence — first a daughter (b.~1909), then head of a 5-person household.
Age 21
b. ~1909
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Davis |
| Given Name | Lillian C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Woburn City |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Lillian | Age | Birth yr |
|---|---|---|---|---|
| Thelma Davis | Daughter | — | 22 | ~1908 |
| Lillian Davis | Daughter | — | 21 | ~1909 |
| Joseph Davis | Head | — | 56 | ~1874 |
| Eliza Dickson | Other | — | 82 | ~1848 |
| Julia Davis | Other | — | 49 | ~1881 |
Census Appearances
1910
Middlesex, Massachusetts
Daughter, age
Middlesex, Massachusetts · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Lillian A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Years Married | 0 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Daughter, age 11
Middlesex, Massachusetts · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Lillian |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 21
Middlesex, Massachusetts · implied b. ~1909 — 5 household members
| Surname | Davis |
| Given Name | Lillian C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Lillian Davis across 3 US Census years (1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father Ernest Davis (~0.92 confidence) and mother Florence Davis (~0.92 confidence) and father Joseph Davis (~0.92 confidence) and father Joseph Davis (~0.92 confidence) and mother Lula Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ernest Davis
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Florence Davis
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
Joseph Davis
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Joseph Davis
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Lula Davis
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lillian Davis
Daughter · 1930 · age 21 · b. ~1909 · Massachusetts
★ You are viewing this record
Sibling
Thelma Davis
Sibling · 1930 · age 22
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 — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel931:1054)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Joseph J Davis | 56 | Head | Carpenter | Massachusetts |
| 52 | Julia A Davis | 49 | Wife-H | — | Massachusetts |
| 53 | Thelma M Davis | 22 | Daughter | Teacher | Massachusetts |
| 54 | Lillian C Davis THIS PERSON | 21 | Daughter | — | Massachusetts |
| 55 | Eliza A Dickson | 82 | Mother-in-law | — | Massachusetts |
| 56 | James S Finney | 40 | Head | Carpenter | Canada-English |
| 57 | Eliza M Finney | 37 | Wife-H | — | Canada-English |
| 58 | Olive H Finney | 17 | Daughter | — | Massachusetts |
| 59 | Alice M Finney | 14 | Daughter | — | Massachusetts |
| 60 | Beulah M Finney | 5 | Daughter | — | Massachusetts |
| 61 | Charles A Hall | 58 | Head | Nitric Maker | Canada-English |
| 62 | Margaret E Hall | 50 | Wife-H | — | Canada-English |
| 63 | Albert J Hall | 21 | Son | Steamfitter Apprentice | Massachusetts |
| 64 | Charles G Hall | 17 | Son | Soda Maker | Massachusetts |
| 65 | Vernon C Hall | 16 | Son | — | Massachusetts |
| 66 | Pauline A Hall | 14 | Daughter | — | Massachusetts |
| 67 | Ruth E Hall | 12 | Daughter | — | Massachusetts |
| 68 | Gladys M Hall | 7 | Daughter | — | Massachusetts |
| 69 | John A Quinlan | 30 | Head | Laborer | Connecticut |
| 70 | Loretta U Quinlan | 23 | Wife-H | — | Massachusetts |
| 71 | Barbara M Quinlan | 2 | Daughter | — | Massachusetts |
| 72 | James A Greens | 36 | Head | Carpenter | Canada-English |
| 73 | Almira H Greens | 36 | Wife-H | — | Massachusetts |
| 74 | James A Jr Greens | 10 | Son | — | Massachusetts |
| 75 | Frederick J Wright | 75 | Head | Watchman | England |
| 76 | Esther B Wright | 64 | Wife-H | — | Pennsylvania |
| 77 | Percy Ashdown | 65 | Head | Music | England |
| 78 | Lucy A Ashdown | 41 | Wife-H | — | England |
| 79 | Stanley A Ashdown | 15 | Son | Clerk | Massachusetts |
| 80 | Doris E Ashdown | 14 | Daughter | — | Massachusetts |
| 81 | James J Wright | 36 | Head | Salesman | New Hampshire |
| 82 | Pauline S Wright | 35 | Wife-H | — | New Hampshire |
| 83 | Oliver J Fridolin | 26 | Head | Salesman | Connecticut |
| 84 | Ruth S Fridolin | 25 | Wife-H | — | Massachusetts |
| 85 | Oliver J Jr Fridolin | 6 | Son | — | Massachusetts |
| 86 | Earle W Fridolin | 5 | Son | — | Massachusetts |
| 87 | Malcolm Fridolin | 3 | Son | — | Massachusetts |
| 88 | Julius Fridolin | 54 | Head | Tailor | Sweden |
| 89 | Ragnar Fridolin | 29 | Son | Salesman | Massachusetts |
| 90 | Nils Fridolin | 32 | Nephew | Finisher | Sweden |
| 91 | Harvey Collins | 34 | Head | Advertising | Massachusetts |
| 92 | Della V Collins | 30 | Wife-H | — | Massachusetts |
| 93 | Paul G Collins | 8 | Son | — | Massachusetts |
| 94 | Peter M Anderson | 46 | Head | Florist | Denmark |
| 95 | Lewis Holt | 48 | Head | Shipper | Massachusetts |
| 96 | Maida E Holt | 40 | Wife-H | — | Canada-English |
| 97 | Harold N Holt | 19 | Son | Milkman | Massachusetts |
| 98 | Robert F Holt | 17 | Son | Milkman | Massachusetts |
| 99 | Marian I Holt | 14 | Daughter | — | Massachusetts |
| 100 | Phillip E Holt | 11 | Son | — | Massachusetts |
Pedigree Summary
Lillian + 1 sibling
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 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)