I went to Guidestar.org and found this 990 form filed for 2013, which listed salaries as follows:
Barbara Whitehead: $110,000
Elizabeth Marquadt: ~$121,000
Raina Sacks Blankenhorn: $120,000
David Blankenhorn: ~$331,000
The 2013 revenue was ~$1,400,000 and almost all of that went to salaries and a third of it went to the Blankenhorns.