My grandfather's name was Reinhold Waldemar Larsson b. 30 Mar 1900 in Överluleå. His parents were named Leonard Larsson (b. 1871 in Överluleå) and Ida Erika Wikström (b. 1872 in Wibbyn). Reinhold had four siblings but I cannot find any information on any them from after the time they were born so if anyone recognizes any of the names below I'd appreciate to hear from you.

Jenny Maria Larsson b. 20 Jan 1899 in Överluleå
Johan Sigard Larsson b. 08 Nov 1903 in Överluleå
Yngve Lennart Larsson b. 11 Jan 1915 in Överluleå

And finally Lilly Larsson (b. ?) she supposedly moved to Örebro and so did Reinhold so it is possible that some of the other siblings did as well or they could, of course, have gone to America.

Any help is appreciated :)