I don't know about 408 and 437 Main Street, is they considered
historic ?. Both would be on a very short list of highest-priority structures in the City of Hackensack to knock down and redevelop.
I would add to your list:
1. USS Ling
2. the city's newly purchased cultural arts center
3. Holy Trinity Church, 2nd Reformed Church, Christ Episcopal, 1st Baptist, 1st Presbyterian, Calvary Baptist (Union & Central Ave)
4. The house on Clinton Place just east of Holy Trinity Church, is this possibly the oldest house in the city
5. NW corner of Park and Berry Street, this house was built in 1845
6. The ancient duplex House on Union Street next to (north of) First Presbyterian Church, this dates to mid-1800's. Unique architectural style for Hackensack. It's a one-of-a-kind. It's right under the nose of BLeafe, and I don't think he's ever posted a photo of it.
7. Hackensack post office
8. NE corner of Main & Bergen Street, classic brick building now housing a low-budget chinese buffet. Very old, probably early-mid 1800's.
9. The big bank building, Main & Banta. A few other of the big bank buildings (Main/Mercer, Main/Salem)
10. SE corner of Main & Passaic. This 4-story building is Civil War or pre-Civil War construction. I think I read once 1850.
11. Hackensack city hall
12. White Manna
13. Old Jail building behind the courthouse
I'll add more if I think of them