I have no clue about these services, but is there someone you know in the town your husband was born in that can pickup a copy from the local recorder?
Here in California the county you were born in, not the state, handles birth and death certificates. I deal with this all the time because I am involved in Little League baseball, and LL requires a certified copy of a birth certificate. I think it costs $12 now, takes about 15 minutes to get, but you have to go there to get it.