Foster child searching for info on foster place

Hello. This place is no longer around and am hoping to find someone who maybe worked there or knows of a new name the agency changed too? I was placed there in 1969, for how long I don't know. That's why I would love to contact someone who might have my records. The agency name was Church Mission of Help in Baltimore, Maryland. And 2nd... and I honestly don't know if I'm going out of bounds on this part and if I am, I'm sorry. I'm digging up so much information, but it's all in bits and pieces and the people I can talk too to give me more information, won't do it and when I do get info, it's all lies. My grandmother (grandfather was around as well but...) was a foster parent for many years in the 1950s. I don't know the agency etc, but I would love to talk to anyone who was with her and learn more about my family. I will only say on an open forum that this was in Harford County, Maryland, initials G.F. Thank you to anyone that may be able to help.