HM
Helen Murphy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this Helen Murphy across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1902), then head of a 6-person household.
Age 38
b. ~1902
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Murphy |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Occupation | Stenographer |
| Industry | State House |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Stenographer |
| Township / Ward | Springfield |
| Est. Birth Year | ~1902 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Murphy | Daughter | — | 18 | ~1922 |
| Margaret Murphy | Daughter | — | 24 | ~1916 |
| Mary Murphy | Daughter | — | 36 | ~1904 |
| Elinor Murphy | Daughter | — | 21 | ~1919 |
| Helen Murphy | Daughter | — | 38 | ~1902 |
| Agnes Murphy | Head | — | 58 | ~1882 |
Census Appearances
1920
Sangamon, Illinois
Daughter, age 18
Sangamon, Illinois · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Helen M. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Illinois |
| Occupation | Stenographer |
| Industry | State Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Sangamon, Illinois
Daughter, age 29
Sangamon, Illinois · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Illinois |
| Occupation | Stenographer |
| Industry | State |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Sangamon-County, Illinois
Daughter, age 38
Sangamon-County, Illinois · implied b. ~1902 — 6 household members
| Surname | Murphy |
| Given Name | Helen |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Occupation | Stenographer |
| Industry | State House |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Helen Murphy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Murphy (~0.92 confidence) and father John Murphy (~0.92 confidence) and mother Agnes Murphy (~0.92 confidence) and mother Agnes Murphy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Murphy
b. ~1868
Source father
● Household
· direct · ~0.92
Father
John Murphy
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Agnes Murphy
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Agnes Murphy
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Murphy
Daughter · 1940 · age 38 · b. ~1902 · Illinois
★ You are viewing this record
Sibling
Mary Murphy
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elinor Murphy
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Murphy
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Murphy
Sibling · 1940 · age 24
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 — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00886-00197)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Grant | 24 | Wife | Checker | Illinois |
| 42 | Agnes Murphy | 58 | Head | — | Illinois |
| 43 | Helen Murphy THIS PERSON | 38 | daughter | Stenographer | Indiana |
| 44 | Mary Louise Murphy | 36 | daughter | Stenographer | Indiana |
| 45 | Margaret Murphy | 24 | daughter | Stenographer | Illinois |
| 46 | Elinor Murphy | 21 | daughter | Secretary | Illinois |
| 47 | Dorothy Murphy | 18 | daughter | — | Illinois |
| 48 | Charlotte Ryan | 51 | Head | Librarian | California |
| 49 | Elizabeth Davis | 23 | Head | Stenographer | Illinois |
| 50 | Evelyn Walters | 25 | Lodger | Stenographer | Illinois |
| 51 | Louis M. Nicole | 52 | Head | Supervising Nurse | Ohio |
| 52 | Charles Furman | 71 | Head | — | Iowa |
| 53 | Mae Furman | 65 | Wife | — | Illinois |
| 54 | Fredia Kenyon | 47 | daughter | Clipping | Illinois |
| 55 | Hellen Shaffer | 43 | daughter | Clerk | Illinois |
| 56 | Vivian Conner | 30 | daughter | Engineering Assistant | Illinois |
| 57 | Elenor Furman | 16 | daughter | — | Illinois |
| 58 | Bobette Kenyon | 24 | granddaughter | Stenographer | Illinois |
| 59 | William Lapp | 22 | Head | Clerk | Illinois |
| 60 | Marjorie Lapp | 22 | wife | — | Illinois |
| 61 | Marilyn Lapp | 2 | daughter | — | Illinois |
| 62 | Margaret Little | 73 | Head | — | Illinois |
| 63 | Ivan George | 31 | Lodger | Insurance Dept | Illinois |
| 64 | Katherine George | 17 | Lodger | — | Illinois |
| 65 | Elizabeth Tarr | 70 | Head | — | Illinois |
| 66 | Maranda Tarr | 36 | daughter | Office Girl | Illinois |
| 67 | Joe M. Shepherd | 64 | Head | — | Mississippi |
| 68 | Margie Cannon | 41 | daughter | — | Mississippi |
| 69 | Carrie B. Dinkel | 78 | Head | — | New York |
| 70 | Don J. Lacey | 46 | Head | Director Of Safety & Insurance | Illinois |
| 71 | Flolla Lacey | 47 | wife | — | Illinois |
| 72 | Thomas Reynolds | 57 | Head | Proprietor | Illinois |
| 73 | Elizabeth Reynolds | 49 | wife | — | Kansas |
| 74 | John Higgins | 78 | Father-in-law | — | Scotland |
| 75 | Mary Higgins | 76 | Mother-in-law | — | England |
| 76 | J. D. Higgins | 51 | Brother-in-law | Agent | Kansas |
| 77 | Allan Coe | 61 | Head | Proprietor | Illinois |
| 78 | Minnie Coe | 66 | Wife | — | Illinois |
| 79 | Joseph Miller | 48 | Head | Civil Engineer | Illinois |
| 80 | Helena Miller | 42 | wife | — | Illinois |
Pedigree Summary
Helen + 4 siblings
Gen 1 · 4 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)