MS
Margaret Simmons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, Indiana
Our Model Tree links this Margaret Simmons across the 1930 and 1940 US Censuses in Lake-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Indiana |
| Surname | Simmons |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Hammond City |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Industry | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Hammond City |
| Est. Birth Year | ~1927 |
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 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| John Simmons | Son | — | 8 | ~1932 |
| John Simmons | Other | — | 66 | ~1874 |
| Mary Simmons | Spouse | — | 39 | ~1901 |
| John Simmons | Head | — | 39 | ~1901 |
| Margaret Simmons | Daughter | — | 13 | ~1927 |
| Charlotte Simmons | Daughter | — | 7 | ~1933 |
| Joseph Simmons | Son | — | 6 | ~1934 |
| Sarah Simmons | Other | — | 63 | ~1877 |
| Mary Simmons | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Lake, Indiana
Daughter, age 3
Lake, Indiana · implied b. ~1927 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | Margaret Ann |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lake-County, Indiana
Daughter, age 13
Lake-County, Indiana · implied b. ~1927 — 9 household members
| Surname | Simmons |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Hammond City |
| 1935 Residence (County) | Lake |
| Industry | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Simmons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Simmons
Daughter · 1940 · age 13 · b. ~1927 · Indiana
★ You are viewing this record
Sibling
Charlotte Simmons
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Simmons
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Simmons
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Simmons
Sibling · 1940 · age 6
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
1940 US Federal Census — Lake-County, Indiana
Open full size
1940 US Federal Census — Lake-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01066-00869)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis Pietzyak | 15 | Son | — | Indiana |
| 42 | Robert Pietzyak | 9 | Son | — | Indiana |
| 43 | Gerald Pietzyak | 0 | Son | — | Indiana |
| 44 | Ernest Rose | 42 | Head | Electrician | Indiana |
| 45 | Charles C. Shoemaker | 54 | Head | Switchman | Ohio |
| 46 | Frieda Shoemaker | 43 | Wife | — | Illinois |
| 47 | William C. Shoemaker | 12 | Son | — | Indiana |
| 48 | Beverly Shoemaker | 6 | Daughter | — | Indiana |
| 49 | Mary Ann Shoemaker | 4 | Daughter | — | Indiana |
| 50 | Emma Mickow | 58 | Head | — | Illinois |
| 51 | Gertrude Mickow | 32 | Daughter | Paint Cleaner | Illinois |
| 52 | Ann Mickow | 21 | Daughter | Packer | Indiana |
| 53 | Harry Stollard | 48 | Head | Switchman | Illinois |
| 54 | Gertrude Stollard | 35 | Wife | — | Illinois |
| 55 | Margaret Stollard | 19 | Daughter | — | Illinois |
| 56 | William Stollard | 17 | Son | — | Illinois |
| 57 | Joseph H. Keitzer | 44 | Head | Proprietor | Indiana |
| 58 | Ellen Keitzer | 46 | Wife | Pharmacist | Indiana |
| 59 | Rosemary Keitzer | 6 | Daughter | — | Indiana |
| 60 | Clement B. Knapp | 33 | Head | Manager | Poland |
| 61 | Alice C. Knapp | 30 | Wife | — | Indiana |
| 62 | Barbara Knapp | 5 | Daughter | — | Indiana |
| 63 | Carolyn Knapp | 3 | Daughter | — | Indiana |
| 64 | Genevieve Knapp | 22 | Sister | Saleslady | Indiana |
| 65 | John W. Simmons | 39 | Head | Electrician | Pennsylvania |
| 66 | Mary Simmons | 39 | Wife | — | Pennsylvania |
| 67 | Mary Jane Simmons | 15 | Daughter | — | Pennsylvania |
| 68 | Margaret Simmons THIS PERSON | 13 | Daughter | — | Pennsylvania |
| 69 | John B. Jr. Simmons | 8 | Son | — | Indiana |
| 70 | Charlotte Simmons | 7 | Daughter | — | Indiana |
| 71 | Joseph R. Simmons | 6 | Son | — | Indiana |
| 72 | John B. Sr. Simmons | 66 | Father | Helper | Pennsylvania |
| 73 | Sarah Simmons | 63 | Mother | — | Ireland |
| 74 | Minnie Bot | 47 | Head | — | Indiana |
| 75 | Thomas Bot | 14 | Son | — | Indiana |
| 76 | Lois Bot | 13 | Daughter | — | Indiana |
| 77 | Homer Bot | 9 | Son | — | Indiana |
| 78 | Edmund Barnes | 22 | Son | Chipper | Indiana |
| 79 | Everette Barnes | 17 | Son | New Worker | Indiana |
| 80 | Henry Ready | 6 | Son | — | Indiana |
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)