The Thousand-Seok Wealthy Family of Gwacheon

It was once Gwaju during the early Joseon Dynasty, and was renamed and promoted to Gwacheon-hyeon during the reign of King Taejong.
A mere hyeon has now become a major city in Gyeonggi Province with a population of 2.3 million.
Since the Goryeo Dynasty, there was an insignificant local clan.
While they may not have been "Manseok-kkun" (families with 10,000 seok of grain), they were "Cheonseok-kkun" (families with 1,000 seok) for generations,
so they likely owned hundreds of thousands of pyeong of land.
Considering current land prices in Gwacheon, it would have been a fortune large enough to buy all of South Korea.
Not even a Manseok-kkun, just a mere Cheonseok-kkun...
Aren't you curious about that family?
If you are curious, please donate 500 won anywhere, attach proof of donation,
and request the information.
It will likely be worth thousands of times that 500 won.