(your street
city, state, zip)
(date)

(name
street
city, state, zip)

Dear ________________________:

When I took the position at ____________________, I never thought that I would be resigning so quickly. However, I must leave the position at the ____________________ of ____________.

Ill health and growing burdens have made it impossible to conduct this program. I only wish that I can continue to work for such a worthwhile agency.

Sincerely,