Elizabeth Moynihan, the widow of Daniel Patrick Moynihan, whose Senate seat Hillary now occupies. Neither of them ever liked Hillary, despite Moynihan's public support (Hillary announced her run for his seat on his farm). That support took some behind the scenes doing between Clinton advisor Mandy Grunwald and Moynihan's daughter, Maura, who were Harvard College roommates, according to New York Times Magazine reporter, Edward Klein.
Alma Rangel, wife of Congressman Charles Rangel. He's the one who suggested Hillary run for the Senate after she campaigned for Senator Charles Schumer in
Ethel Skakel Kennedy, the widow of Robert Kennedy, writes of why she parted ways with three of her offspring (who have endorsed Hillary) in a Huffington Post blog here.
Maria Shriver, wife of Arnold, niece of JFK & RFK, spontaneously decided to make her support public at the Obama rally today in California (yeah, the one with Oprah and Caroline Kennedy and Stevie Wonder). Probably the most exciting moment ever on CSPAN (and I watch a lot of CSPAN).