Trying to connect the following to the family tree.Found on the 1930 Census Idaho Falls,Bonneville Co.,PCT 1,Idaho & the WW 1 Draft Registration.

Samuel Walter Nulph - b. 19 Mar 1888 in Idaho - married at age 20 - father b.Wisconsin,mother b.Washington - laborer,odd jobs
Nina L. - wife - age 28 - b.Washington - father b.Washington,mother b.Oregon
Rex Drayle - son - age 17 - b.Washington - father b.Idaho,mother b.Washington

Any help in determining his parents and grandparents greatly appreciated.

Best Regards,
Bill Nulph
Houston,Texas