I believe the word is BINGO, when you find a relative you have been looking for in vain so far. You are absolutely right: Axel Lindgren was born on March 20, 1884. I have him as Axel Carl, when he was born but he then changed his first name to Gustav. He was the son of Erik Samuel LINDGREN - born October 01, 1848 in St Olai parish in Norrkoeping, Sweden and his wife Vendela Charlotta EKSTRAND, born september 26, 1855 in Katarina parish in Stockholm. My maternal grandmother was his sister. I would be happy to provide more information and look forward to hear from you. Are you related?