Who is this earnest young performer?

Subtract an incredible 50 years, and “it’s me—myself!” as Motel the tailor exclaimed, in my high school’s production of Fiddler on the Roof. It was one of the highlights of my senior year.
My featured song was Wonder of Wonders, captured here as I expressed its sentiments to my betrothed Tzeitel, the milkman’s daughter.
The song’s ending lyrics:
“But of all God’s miracles large and small,
The most miraculous one of all
Is the one I thought could never be:
God has given you to me.”
I was very glad my girlfriend had been able to come see our show. She quietly told me afterward she had wished I was singing it to her. She was so cute—I married her.