For whatever it is worth:
Snopes:
http://www.snopes.com/politics/obama/firstlady.aspA look at some first ladies and their staff sizes:
Laura Bush: Between 24 and 26 by end of President George W. Bush's term in 2009, according to Anita McBride, Mrs. Bush's chief of staff.
Lady Bird Johnson, whose signature issue was beautifying roadways, had a staff of 30, said Stacy A. Cordery, a history professor at Montmouth College in Illinois who studies first ladies.
Betty Ford had almost the same number.
Jacqueline Kennedy, who made renovating the White House her cause, had about 40 people on staff, Cordery said.