My parents considered naming me Lloyd but decided for some unknown reason to settle on Allan, the version with 2 “L’s”. Not Allen, Alan, Allyn, or Alun. I’m not named after anyone and I don’t know if any family members with that name. It apparently means “handsome”.
The 2 “L” version is apparently more common in England, Ireland, and Scotland. I am partly of Irish ancestry but I refuse to pay to get my DNA tested knowing that the data will be sold. But, as a professional health care worker I’ve submitted to annual background checks and I’ve donated enough urine (for pre-employment drug testing) to fill an Olympic swimming pool.