If the person(s) you are looking for, are found on the internet site
SSDI, under Ancestry.com -

On the right-hand side of the info. on the indiv.you are checking on, is
a box designated "Write letter." Click on that, and a form letter, with
your indiv. and info. already imprinted. Just follow the bouncing ball
per instructions. Takes time, but no def. time frame, >from my experience.

Send your $7.00 per request, or in the event of multiple names/requests,
send one check, and on _each_letter, note the chk. #, and the fact that
the encl. check is for all request. Works quite well.

Have fun.

Joan Breslow