So what it does tell us is that the land was owned by George F. Tyler, who acquired it in stages between 1919 and 1928. So prior to his ownership, portions of it had been broken up and owned by different people. Tyler's family originally lived in the Solly Farm House (right) until their mansion (above) was built but they continued to vacation in it after moving into the mansion. The mansion is now the administration office building for the Bucks County Community College and Solly House was functioning as a hostel up until recently but is now vacant, though Hostelling International are still leasing it apparently. Sadly, it doesn't appear that anyone is taking care of it right now and if someone doesn't start soon, this local icon could deteriorate fast. I can only hope there are future plans for it. The above/right photo of Solly House is merely the original house, many larger extensions were added to the back, as you can see below.
The Tyler's farm had one of the finest herds of Ayrshire diary cattle in the county, as well as poultry, sheep, pigs, and a stable of about 25 horses. Their plentiful crops were mainly used to feed their livestock. They also had several servants - a dozen in 1920 including but not limited to five maids, two laundresses, a cook, and a governess for the family's children who were twelve, nine, and five years old at the time. By 1930, the Great Depression may have even been influencing them as their staff had reduced almost by half, dropping to only seven, mostly maids and also a cook and a butler. By 1940, the servant numbers had gone back up to ten including three maids, two waitresses, a cook and a valet, all working 60 hours a week. Before purchasing the land that would become Tyler State Park, the family lived at 296 Old York Road in Montgomery County. They only had one child at this time and employed a maid and a cook. This information was obtained from census records, hence my inability to make out some of the occupations of servants. George Frederick Tyler had been born in Newport, Rhode Island on August 10, 1883 and married his wife Stella Elkins around 1907. They had three children: Sidney, Molly, and George Jr.
Another icon of Tyler State Park is the Schofield Ford Covered Bridge. Originally built in 1874, it burnt down in 1991 and was rebuilt with authentic materials and methods in 1997. It's the longest covered bridge in Bucks County, shown below.
I wish I could say more about some of the other beautiful historic homes in the park which have been kept up better. Ten of them are currently leased out to residents who care for them. I also wish I had more information on the different pieces of land before they all came into Tyler's possession - after all, he only acquired the first portion of it in 1919 but the land had been settled since colonial times. And I'm sure the Solly House was once owned by a family named Solly but whether it has any connection with the other Solly Farm currently in another area of Bucks County, I don't know. These were the things I was hoping to find out from the park office. Regardless, below are some of the other lovely historic houses and barns to be found in the park and more photos of the back of the Tyler mansion as well.
Addendum: I was browsing the Library of Congress (great resource, by the way) for maps and came across one for Philadelphia and Bucks County from 1681. Curious to see if I could find the area that would become Tyler State Park, I attempted to overlay Google Maps on it and then drew a rough outline in Photoshop. Below is the result, though keep in mind that it's approximate - I could not quite get the maps to line up exactly right and I'm not sure the scales were entirely equal. But this should give you a rough idea of who the original lands of the park area were owned by.