Richard Parkinson Sedgwick [John Sidgwick / Alice Wilkinson]
Jessie Miriam Williamson [D H Williamson, Jessie Unknown]
Cynthia May Willey [parents unknown, both born Iowa]2
At the 1910 census, Richard was widowed and living with his parents, and reported as widowed, but his estranged wife Miriam and a son were living not far away with her parents.
A family tree exists at Ancestry.com which shows one Cynthia Maye Willey b. February 16, 1887 who married Unknown Sedgwick to be the daughter of Levi Willey (1855 - 1916)and Mary Lucenda Washburn (1861 - 1925), both born Iowa. However, I cannot find any census records or other evidence, so I won't add it for now.
There is no indication that Cynthia May Willey was married before Richard, so based on the 1911-1912 birth of daughter Dorothy M, I assume that Richard and Cynthia were married later in 1910 or early 1911. Can't find them anywhere in the 1930 census.
Children of Richard Parkinson Sedgwick and Jessie Miriam Williamson:
b. abt 1908, [Grover, Weld,] Colorado2
Children of Richard Parkinson Sedgwick and Cynthia May Willey:
Dorothy M Sedgwick
b. abt 1911, Colorado2
Mary Sue? Sedgwick
b. abt 1917, Colorado2
1. Records of descendant/researcher of this family:
2. Census records, any of those indicated.
3. Descendants of Anthony and Alice (Sayer) Wilkinson