I have a beautiful booklet "Pre-1800 Houses of Frederick County (Maryland), Volume three, Mount Pleasant to Woodville" by Ann Lebherz, Mary Margrabe, and Sarah Drenning.
"Apples United Church of Christ (pictured) began as a small log church in the wilderness 240 years ago and served those of the Lutheran and German Reformed faiths.A Mr. Peter Appel, who owned and lived on the farm next door donated the land for the church, schoolhouse, and cemetery.In 1826 the present stone building was erected ad was occupied by the two denominations until 1857."There is further information here.
Har-Land Manor Farm (pictured) This two-and-one-haf storied building has had many names:Good Neighbor, Arnold's Delight, Shoemaker's Awl, and Moyer's Profit.Peter Apple (Appel) was the original owner.He possible built this house in the 1740s.The house has been remodeled many times and little of the original building is visible, however, some of the early beams can be seen in the celler.There are several outbuildings, including the old summer kitchen and springhouse."
"The Peter Apple tombstone (pictured, died 1765) was found on the farm and has been placed in concrete near the front door.
A house nearby was "Father's Farewell Farm was built about 1780 on land first owned by Henry Fior (various spellings).It weas in the family for almost 100 years."The name was aopted when Henry sold the farm to his son Leonard and then moved to Kentucky with his family."