The 1850 United States census showed Llewellyn Grigg (age 12, born in New York) living with his father George H. (age 48, born in New Hampshire, farmer) in Grand Chute, Wisconsin. His other siblings were Amanda B. (age 28, born in Ohio), John W. (age 24, born in New York, brick maker), Lyman M. (age 18, born in New York, farmer), Caroline (age 15, born in New York), George H. (age 9, born in Wisconsin), and Helen (age 9 months, born in Wisconsin).
The 1860 United States census showed Lewelin Gregg (age 22, born in New York, farmer) living with his brother L. M. (age 27, born in New York, farmer) and his brother’s wife Clara (age 24, born in Michigan) in Township 111, Range 10, Wabasha County, Minnesota.
Llewellyn H. Gregg married Alice Virginia Hobart (born in Illinois in 1846) in 1869.
The 1870 United States census showed Lewellen Grigg (age 30, born in New York, brick maker) married to Alice (age 23, born in Minnesota) and living in Mankato (Ward 3), Minnesota.
The 1875 Minnesota census showed Lewelin H. Gregg (age 36, born in New York) married to Alice V. (age 28, born in Illinois) and living in Rapidan, Blue Earth County, Minnesota. Children Norris L. (age 5, born in Minnesota) and Sara E. (age 1, born in Minnesota) also lived with the couple.
The 1885 Minnesota census showed Lewis H. Gregg (age 46, born in New York) married to Ellen (age 37, born in Illinois) and living in Rapidan Township, Blue Earth County, Minnesota. Children Moses (age 13, born in Minnesota), Sarah (age 11, born in Minnesota), Mattie (age 8, born in Minnesota), and Ethel (age 1, born in Minnesota) also lived with the couple.
The 1900 United States census showed L. H. Gregg (age 60, born in February 1840 in New York) married to Alice V. (age 52, born in August 1847 in Illinois) and living in Rapidan Township, Blue Earth County, Minnesota. Children May M. (age 23, born in May 1877 in Minnesota) and Ethel A. (age 16, born in January 1884 in Minnesota) also lived with the couple.
The 1905 Minnesota census showed L. H. Gregg (age 65, born in New York, farmer) married to V. A. (age 57, born in Illinois) and living in Rapidan Township, Blue Earth County, Minnesota. Children M. M. (age 28, born in Minnesota) and E. A. (age 21, born in Minnesota) also lived with the couple.
The 1910 United States census showed Llewis Gregg (age 70, born in New York) living with his daughter Mary (age 27, born in Minnesota) and Mary’s husband Walter Godopp (age 22, born in Wisconsin, railroad fireman) in Spokane, Washington.
Llewellyn Gregg died October 11, 1910, in Spokane, Washington.