Does anyone have any further information on siblings, mother, father, connections for Johan Werner or any other family member?

Oscar immigrated to Canada and then came to the U.S. when he was 22...left behind a brother (Johan Werner Nilsson) and I would like to know if there are any descendants living. Am planning a trip to Sweden in the next year or so and would love to know if there are living relatives!
Here is what I know:
(My) Grandfather: Oskar Vilhelm Nilsson
His Parents: Axel Alfred Nilsson, B. 01 FEB 1863, Anna Karolina Wallin, B. 08 Oct 1864,
His Brother: Johan Werner, b. 18 Dec 1898

Axel Alfred Nilsson parents:
Nils Fredrik Isaksson, b. 1817
Anna Lisa Olsdotter, b. 1825

from Overlulea, Svartbyn, Norrbotten Sweden.