trying to find my adopted son

I used to live in des moines iowa and during that time I took in a young man and his girlfriend and they went through alot of surgeries with me and were like my own children and then they broke up and he got into trouble and I am really wanting to find the two of them and know how they are doing and all. his name is ephriam groves and her name was sarah davis. they called him frog. he got a disabbility check at the payee services over by the va hospital. if anyone knows them or knew them and can help me i would apprecate it. they used to hang downtown by the ywca and the loop over by the river. please email me at norettasgirl@yahoo.com or call 712-560-3583 thank you and god bless anyones help in my search.