Hi, not sure if you're still on this since your post was 10 years ago! But I thought I would give it a chance. Jens Jorgenson is my great-great grandfather. He married Eva (Evelyn) Hill and had two daughters, Helen and my great grandmother Evelyn. Eva died giving birth to Evelyn and Jens remarried a woman named Lulu.
I found a book on Education History in Hayward that tells about Ole and Jens if you're interested.