Is anyone familiar with what photographers in Fond du Lac made tintypes? I have two that have the exact same background. One is my great-grandfather (Frank Waller) in a derby holding a tall mug of beer with another man. The other I was just given by my uncle (Dave Ottery), that shows almost the exact same pose at a slightly different angle and the two mugs of beer.

I'm trying to figure out what photographer took these so I can determine the unidentified men in the "new" tintype. I'm guessing this is 1900 or so, as my great-grandfather looks almost identical to his wedding photo from 1902.

I've lightened the scans to show the background better. Do these photos look familiar to anyone? Thank you.