He said "No baptismal record was ever found." That doesn't mean he wasn't baptized.
There was no formal record of mine, though I remember it. I was 7, possibly 8, full immersion Southern Baptist. I had my Dad contact the church secretary from the time, who also remembered it, and as a non-relative, the letter she was kind enough to write was accepted at the parish where I was received.
The issue of nonexistence of my baptismal certificate was what brought out the disaster of my RCIA class - after 4 1/2 months of what I had thought was instruction (and I thought it was pretty lame - I remember writing at least one essay on my "faith journey") when we were preparing to be received at the Easter Vigil, I was told that my lack of a certificate didn't matter, because I wouldn't be received for another year anyway. The (thankfully former) director of RCIA there had decided that everyone had to go through a year of "seeking" before the real "instruction" started. I switched to another parish the next week, the pastor worked with me extra, and I was received that Easter after all, Easter of 2000. Deo Gratias.