Do you know these composer/lyricist's birthdays??

Hello all,

I've been looking online for sometime and cannot find the birthdays (I really only need the year) of the following composers and lyricists:

Stephen Margoshes- Orchestrated music to Lestat, Taboo, Aida, and Smokey Joe's (to name a few.)

Dana P. Rowe- Composer of Zombie Prom, The Fix, and Witches of Eastwick.

John Dempsey- Lyricist for The Pirate Queen

Mindi Dickstein- lyricist for Little Women

Jason Howland- composer of Little Women

Do you know the dates or how I can find them?
I've checked the Internet Broadway Database, Wikipedia, and several other Google links...