Who is Eileen Littler from The Risk Pool and what is their importance?

Eileen is Sam's occasional girlfriend. She is a gangly woman about the same age as Jenny. Eileen is a single mother with one son named Drew. She works as a waitress at The Elms and then Mike's Place. She is not a pretty woman, but Sam points out that she is a good woman. Eileen is directly related to Nathan Littler, the founder of Mohawk. The decline of the Littler family parallels the decline of Mohawk. Eileen is a hard worker. She always holds down at least two jobs. Right before the war, Eileen is known for being a wild girl who had a number of boyfriends. She disappears for a time and then reappears with a baby. No one knows the identity of Drew's father, but Ned suspects it is Jack Ward.