New to metal detecting need help identifying these items

[Meldal68]

I went out metal detecting for the first time near a site that Robert Lee stayed
At in Edgehill, VA as he retreated from Petersburg. These items were dug approximately 100 yards from the house he was staying in. The horseshoe was
Found two feet down. It has six nail holes total. Three on each side. The other item was found 6" down and broke in half as I removed. Can anyone please
Help me identify these items?

 

[villagenut]

The middle pics look a lot like a two hole electrical pipe strap. I like the shoe, big date range on these.