Robert Marshall was born on 16 Jan 1794 in Saint George, Lincoln Co., Province of Maine, Massachusetts. He appeared on the census in 1840 in Matinicus, Hancock Co., Maine and again on the census of 1850 in Matinicus, Lincoln Co., Maine, age 56, as a fisherman. He died on 5 Nov 1862. He was married to Lydia Allen on 13 Jul 1826 in Matinicus, Hancock Co., Maine.

Lydia Allen was born on 29 Jan 1804 in Matinicus, Hancock Co., Province of Maine, Massachusetts. She appeared on the census in 1850 in Matinicus, Lincoln Co., Maine age 46. She appeared on the census in 1870 in Matinicus, Knox Co., Maine age 64, living with Jacob and Emily. She died on 6 Jul 1890. Children were:

i. Elmira Marshall was born about 1827.
ii. Augustus F. Marshall was born about 1828 in Matinicus, Knox Co., Maine. He appeared on the census in 1850 in Matinicus, Lincoln Co., Maine, age 21, as a fisherman. He drowned about 1865.
iii. Susan J. Marshall was born on 15 Oct 1829. She died about 10 Nov 1906.
iv. Patience N. Marshall was born in 1835. She appeared on the census in 1850 in Matinicus, Lincoln Co., Maine, age 15.
v. Emily Ann Marshall.
vi. Charles A. Marshall was born in 1842. He appeared on the census in 1850 in Matinicus, Lincoln Co., Maine, age 8.