Dismas was baptized by desire. Under dire circumstances, he acknowledged Jesus Christ for Who He was and is and rebuked the bad thief for his lack of respect. Others were baptized by dying for the Faith but not having been baptized by water. This is known as Baptism by Blood. Both of these doctrines are not as well understood by many in the pews as once they were but they are true nonetheless.
No, this is NOT an invitation to a game of Scriptural Jeopardy.
If my memory is correct, did not in the Acts of the Apostles, and I am a Catholic myself, was not whole families baptized? That had to include infants as well.