William St, Mount Morris, Village
- 4 William St Gray, Ronald
- 5-11 William St Small City Real Estate Llc
- 6 William St Handy, Donald M
- 8 William St Boyle, Julia Ann
- 10 William St O'Dell Irrevocable Livingtrust, Matthew J
- 12 William St O'Dell Irrevocable Livingtrust, Matthew J