Harmon Pl, Smithtown
- 3 Harmon Pl Pavone (Irrev Trst), Anthony
- 5 Harmon Pl Grimaldi, Lindsey/Gia
- 7 Harmon Pl Foley Family Irrevocable Trust, Thomas R/Mary Ann
- 9 Harmon Pl Moccia, Frank/Kathleen
- 11 Harmon Pl Scarito, Michael/Gail
- 15 Harmon Pl Ianno, Joseph J
- 17 Harmon Pl Stark-Harrold (Fam Trst), Bette Ann