Dorothy West Lathrop
I think this is who you're looking for. West Lathrop was the name she went by, but her full name seems to be Dorothy West Lathrop. Here's her background:
Dorothy West Lathrop b. 19 June 1891, Stafford Springs, CT d. ???. She was the daughter of William Waldo Lathrop and Harriet West.
William Waldo Lathrop b. 10 April 1863, Bridgeport, CT d. 11 Sept 1897 Stafford Springs, CT. He was the son of Don Ferdinand Lathrop and Harriet A. Waldo.
Don Ferdinand Lathrop b. 18 October 1832 Coventry, CT d. 31 March 1878, Coventry, CT. He was a son of Justin Lathrop and Mary Isham.
Justin Lathrop b. 18 September 1802 Tolland, CT d. 6 April 1874 Tolland, CT. He was the son of John Lathrop and Polly Kinney.
John Lathrop b. 1771 Tolland, CT d. 17 March 1837 Tolland, CT. He was the son of Zebulon Lathrop and Alice Edgerton.
Zebulon Lathrop b. 29 Nov 1744 Norwich, CT d. 29 Mar 1814 Tolland, CT. He was the son of Zebulon Lathrop and Lois Rogers.
Zebulon Lathrop b. 10 Jan 1717 Norwich, CT d. 13 Jan 1781 Norwich, CT. He was the son of John Lathrop and Elizabeth Abel.
John Lathrop b. 2 Oct 1690 Norwich, CT d. 1752 Norwich, CT. He was the son of Israel Lathrop and Rebecca Bliss.
And there you have it!