Mom hardly ever measured any thing so just use your own judgment on the amounts.
Peel and dice potatoes and boil till tender. In separate pan boil about 4-6 eggs. When potatoes are tender and eggs are boiled, drain them. To potatoes add mustard, mayo, sweet relish and a small chopped onion, salt and pepper. Peel eggs, chop all except 1 and add to potatoes. Mix well, place in bowl, slice other egg on top.