The Bicycle Outing

The cadaverous faced man from the Hammock people is the first man standing behind the chair. His face has not transferred well to screen but it's definitely him.
The rest of the people are making their first appearance - but perhaps we'll see them again in some of the other glass plate negatives.
If anyone can date this photo from the bicycles, I'd love to hear. From the clothes I'm guessing roughly about 1900 but is it possibly in the 90s? Some of those sleeves look like leg o' mutton on the way out.