When my father passed away, the only thing that I wanted from his house was the big, green family photo album that I knew he'd kept in the cupboard below the bookcase since before I was born. When I went to find it though, it wasn't there. So I was never faced with much of a problem like the one that you've got now. [I gave his collection of wild flower photos, that he'd amassed over the years, to an acquaintance of his (who, I think, accepted them just out of politeness) but I now find myself wishing that I'd kept them.]
Photos shouldn't be put into the recycling bin
https://www.recyclenow.com/recycle-an-item/photographs
but you might want to consider
(a) scanning some of the photos to your computer, before dumping them ; and/or
(b) donating any which show local landmarks (or 'life in the olden days') to a local history group ; and/or
(c) offering them on Freecycle (or similar) to anyone who might, for example, want to make use of them in an art project