More history

I received another ancient photo with ancestors of mine on it.
4 and 5 from the left, sitting. They looks like father and son. The youngest one must be the brother of my grandfather.

I’ve never known that family of mine were members of the (famous) brassband Constantijn Huijgens in Appingedam.
My father in law, Wim, has been a member for over 40 years. That I knew.