>THE RIGHT REVEREND DOCTOR F.X. BUCKLAND, D.D. F.R.S.

My first thought on seeing the name was 'Lazarus Long's mule is a preacher?'

For those unfamiliar, in Robert Heinlein's Time Enough For Love, one of the many past experiences the protagonist recounts is one of the times he founded a new colony world. He had a mule called Buck and there were feels.

It's probably the second most memorable flashback, following the laziest man alive sector, which is set around WWII.