After searching a bit, I discovered my great-great grandfather, J.W. Silliman, was Jervis W. Silliman.
Finally, I found this 1887 Washington Territory census:
|Emma Silliman, with her four children: William, Olla, Frank, and Maud|
In 1889, they're all in the household, except the oldest boy, William, who would have been 16.
|J.W., Emily, Ollie, Frank, Maud Silliman|
I didn't find Emma. Instead, I found this:
|Jervis Silliman, Widowed, and his son Frank.|
I consulted the Washington State Archives Database, looking for Emma's death record. I couldn't find one, but vital records were spotty in the early days of the state. I tried searching under different last names, and then I tried searching for Maud's marriage record, thinking maybe that would help me figure out who her guardian was.
Searching marriages and the last name Silliman, I found this:
|Most of what Emma claims on this form is true.|
At last, I found Maud on the 1900 census:
|There she is, listed as Maud Griffin, Step Daughter to William Parter Griffin|