Re Introducing myself

I have started writing a long letter to re introduce myself to my sending church. I have been gone for 19 years, and there are people in it that I do not know. Somehow, I need to connect with them, so I have written this letter specially for them, and I have flagged up the possibility with the current minister that I would like to address the Congregation next time I am in the Town. It seems odd, introducing myself to a church that I have been a member of for 40 years.