Evelyn Jacobsen, born in 1915, Kings New York

https://familysearch.org/pal:/MM9.1.1/MJ5V-MVC Im trying to find Evelyn (Maybe Ruth Evelyn) Jacobsen, parents Inga Jacobsen and Jacob Jacobsen. Inga dies in 1924, and Evelyn is working in a hospital in Kings in 1930. Irven or Irving is found in a orphan home in 1930. So i suppose that Jacob died within 1920-1930? As you can see, Evelyn is born in 1913 and Irving (Kåre Irwing maybe) is born 1915. Realy need som help finding this out [8D]