He is married to Margaret Candich.
They got married on December 23, 1874 at Dunfermline, Fife, Scotland .Sources 1, 2
1874 STARK, WALTER CANDLISH, MARGARET (Statutory Registers Marriages 424/2 42 Dunfermline Landward)
Record for Walter Stark & Margaret Candish/ Ancestry.com
Name: Walter Stark
Gender: Male
Marriage Date: 23 Dec 1874
Marriage Place: Dunfermline, Fife, Scotland
Spouse: Margaret Candlish
FHL Film Number: 6035516