Elmstrom Family

looking for family of Theodor Gottlob Elmstrom born 5/18/88 Helsingor Denmark, married Johanne Marie Iverson from Christiansand Norway born 9/26/84 her father was theodore nikolai iverson, mother andrea llevine gundersen. Don't know how theodor met johanne. I do know they were married 3/10/1910 in NY, they lived on east 21st street in Brooklyn and had two sons....have 2 passports from theodor from 1920 and 1922 have no idea when he arrived here in usa the first time...if anyone has any info pls. contact me...thank you