Bio: Earth-2 Lois Lane's sister, and mother of Susie Tompkins, Lois' niece. She was never explicitly defined as the older or younger sister of Lois Lane. a fact that stands in marked contrast with her Earth-1 and post-Crisis Earth counterparts. Susie's introductory age of eight certainly makes it possible for her to be older than Lois, but doesn't necessarily preclude her from being younger.
Notes: Lucille was introduced in Bronze Age Earth-2 stories to explain the parentage of Susie Tompkins, an exclusively Golden Age character. The combination of the personas of the mother and daughter is the closest thing Earth-2 has to a "Lucy Lane".