SS
Sidney Smith — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Sidney Smith across the 1920, 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 7-person household.
Age 43
b. ~1887
Male
Head
Born: England
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Smith |
| Given Name | Sidney |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 22 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Occupation | Labour |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 15.00 |
| Veteran | No |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Labour |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1887 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Sidney | Age | Birth yr |
|---|---|---|---|---|
| Barbara Smith | Daughter | — | 1 | ~1929 |
| Dorothy Smith | Daughter | — | 8 | ~1922 |
| Ruth Smith | Daughter | — | 17 | ~1913 |
| Sidney Smith | Head | — | 43 | ~1887 |
| Joe Hinchliff | Other | — | 46 | ~1884 |
| Leonard Smith | Son | — | 15 | ~1915 |
| Anna Smith | Spouse | — | 40 | ~1890 |
Census Appearances
1920
Polk, Iowa
Head, age 32
Polk, Iowa · implied b. ~1888
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Smith |
| Given Name | Sydney C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1905 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | manager |
| Industry | Turkish bath |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | England |
| Year of Naturalization | 1910 |
| Birthplace (normalized) | england |
1930
Polk, Iowa
Head, age 43
Polk, Iowa · implied b. ~1887 — 7 household members
| Surname | Smith |
| Given Name | Sidney |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 22 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Labour |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 15.00 |
| Veteran | No |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Polk-County, Iowa
Head, age 53
Polk-County, Iowa · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Sydney |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Naturalization Status | Naturalized |
| Occupation | Nightwatchman |
| Industry | State Capital |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Sidney Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Sidney Smith
Head · 1930 · age 43 · b. ~1887 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
48 people indexed on this census page (ia:1930:iowacensus00reel677:0481)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | George Vangank | 30 | Head | Labour | Illinois |
| 52 | Ethel Vangank | 27 | Wife | None | Missouri |
| 53 | Leroy Vangank | 6 | Son | — | Iowa |
| 54 | Garnet Vangank | 4 | Son | None | Iowa |
| 55 | Alice Vangank | 2 | Daughter | None | Iowa |
| 56 | Maryland Vangank | 1 | Son | None | Iowa |
| 57 | Fred Bryant | 35 | Head | Truck Driver | Iowa |
| 58 | Mary Bryant | 30 | Wife | None | Iowa |
| 59 | Ruby Bryant | 9 | Son | None | Iowa |
| 60 | Fred Jr Bryant | 5 | Son | None | Iowa |
| 61 | Florence Bryant | 3 | Daughter | None | Iowa |
| 62 | Richard Heller | 39 | Head | Labour | Iowa |
| 63 | Iva Heller | 33 | Wife | None | Iowa |
| 64 | Lester Heller | 11 | Son | None | Iowa |
| 65 | Rex Heller | 5 | Son | None | Iowa |
| 66 | Josephine Heller | 2 | Daughter | None | Iowa |
| 67 | Arthur Heller | 1 | Daughter | None | Iowa |
| 68 | John Murphy | 42 | Head | Driver | Kansas |
| 69 | Minnie Murphy | 38 | Wife | None | Nebraska |
| 70 | Raymond Murphy | 20 | Son | Salesman | Iowa |
| 71 | Belle Murphy | 20 | Wife | None | Iowa |
| 72 | Dorothy Murphy | 18 | Daughter | None | Iowa |
| 73 | Eugene Murphy | 16 | Son | None | Iowa |
| 74 | Johanna Murphy | 14 | Daughter | None | Iowa |
| 75 | Jackie Murphy | 7 | Son | None | Iowa |
| 76 | Virginia Murphy | 4 | Daughter | None | Iowa |
| 77 | James Murphy | 2 | Son | None | Iowa |
| 78 | Virgil Armstrong | 28 | Head | Labour | Iowa |
| 79 | Bernice Armstrong | 27 | Wife | None | Iowa |
| 80 | Charles Armstrong | 9 | Son | — | Iowa |
| 81 | Guy Armstrong | 6 | Son | None | Iowa |
| 82 | Virgil Jr Armstrong | 3 | Son | None | Iowa |
| 83 | Joan Armstrong | 3 | Daughter | None | Iowa |
| 84 | David Armstrong | 1 | Son | None | Iowa |
| 85 | Arthur Reemur | 31 | Head | Labour | Iowa |
| 86 | Sidney Smith THIS PERSON | 43 | Head | Labour | England |
| 87 | Anna Smith | 40 | Wife | None | Iowa |
| 88 | Ruth Smith | 17 | Daughter | None | Iowa |
| 89 | Leonard Smith | 15 | Son | None | Iowa |
| 90 | Dorothy Smith | 8 | Daughter | None | Iowa |
| 91 | Barbara Smith | 1 | Daughter | None | Iowa |
| 92 | Joe H Hinchliff | 46 | Boarder | Miner | Illinois |
| 93 | Lawrence Piper | 53 | Head | Fireman | Iowa |
| 94 | Mary Piper | 45 | Wife | None | Iowa |
| 95 | Ralph Piper | 23 | Son | Labour | Iowa |
| 96 | Deloris Piper | 9 | Daughter | — | Iowa |
| 97 | Francis Piper | 2 | Daughter | None | Iowa |
| 98 | Thomas Higgins | 45 | Head | Gardener | Alabama |
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)