Unknown man and woman

Dorothy?

Based on the flag with harp I'm going to say Northern Ireland.

Can't tell, of course, the color of the flags, but the harp is definitely Irish.

That particular harp on a green background was the flag of the Confederacy of Ireland in the 17th century, and the unofficial flag of Ireland in the 18th and 19th centuries.

The UK symbol in the corner with the harp...haven't been able to find a flag like that anywhere, so maybe it was specially made for the area they are in.

Looks like a stage there with a painted backdrop. A community building for all sorts of events?

Looks like selling handmade things.

From the clothes I think it was before 1890

It looks like a charity sale!

Looks like a fun get together where they are going to play musical chairs.

I'd ay Ireland, judging by the Harp Ensign and the saltire directly over the man's head. But the flags are a confusing mix. Next to the saltire you have the royal standard for use only in Scotland, and then two flags further over is the royal standard for use outside Scotland. Neither of those flags is usually ever seen in bunting, or flown except when there is a royal visit.

Note that the off-looking Union Jacks are perfectly normal ones, but blue did not show up on early black and white photographs.

My guess is that the photo is of a small town's local celebration of a royal or imperial event - possibly a concert to commemorate Queen Victoria's Diamond Jubilee in 1897.

The chair set up is curious!

There is a Scottish flag in the far left as well, looks like a commonwealth gathering perhaps in a school hall. I would say oz

Coffin up front.. funeral perhaps