Looking for BFather, American Armed Forces, and in Stephenville, NFLD,1970

Dont know if you know that I exist but through non-identifying information I was told that my father was named as a member of the American Armed Forces. I was born April 10, 1971 and put up for adoption. My BMother has brown hair and eyes and her religion was Roman Catholic. She has a previous child before me that was being raised by her mother. Do you know anyone from the American Armed Forces that was in Stephenville, Newfoundland back around 1970.... My name before adoption was Eileen Mae.... He probably doesnt know I exist..........just wondering for 32 years if my birth father was alive and really from the States.... Thank you to anyone who listened and/or can help. Delilah Keough