I am trying to trace my father´s cousin and descendants in Brooklyn.
Gustav Olson emigrated to Brooklyn NY about 1900 and married Anna Olson, both from Sweden. They had 2 sons, Artur born 1904 and Harold born 1909, both in Brooklyn NY.
I have found Gustav, Anna and Artur in Census 1940 (ED 24-1364 p 25) 595 10 st Brooklyn.
I am not sure but I think Harold is living 1940 on East 36 nr 1021 Kings NY. He is married to Amy and have a son, Alan born 1935 and a daughter, Peggy born 1937. My questions are: What happens after 1940 and how do I find descendants.
Thanks for reading this!