Although this is one of Aunt Olive's Slater family photos, I don't think any of the people gathered together for this 1910 picture are relatives of mine. It's a popular image that's also found on the Niwot Historical Society website which has this to say about the building:
"Nelson's Hall was built by John Nelson in 1905, it housed businesses with a meeting hall upstairs.
Nelson’s hall stood at the east end of the block, housing various businesses on the first floor and a meeting room upstairs for the Odd Fellows, Rebekahs, Royal Neighbors, and Modern Woodmen.
The Left Hand Grange #9 purchased Nelson's Hall in 1945."
[Courtesy of Olive Slater-Kennedy]
The Left Hand Grange still owns it and says it's the oldest active grange in Colorado.* They completely renovated it in 2009 and here's what it looks like now.
[Source: Left Hand Grange #9 Website]
*You can read about it here. The National Grange's website is here.
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