See my previous reply for the link to your Ziegenfuss line.

Frederick Boyer and his sisters were abducted by Indians during the French and Indian War. An account of this story appears under "Lower Towamensing Township" in the 1884 Mathews and Hungerford history of Carbon County (see http://freepages.genealogy.rootsweb.ancestry.com/~carbdat/m&...).

The following story about Frederick Boyer and his family during the French and Indian War appears in Henry Melchior Muhlenberg Richards et al., Report of the Commission to Locate the Site of the Frontier Forts of Pennsylvania, Vol. 1 (C. M. Busch, 1896), pp. 156-159, in the section concerning Fort Lehigh:

[pp156-158 concern history of the fort]
[p.158]
“Fort Lehigh was at Lehigh Gap, immediately on the north side of the mountain. Its distance from Col. Jno. Craig’s store, at which is the Lehigh Gap Post Office, is about one-half mile. It stood on property originally belonging to Nathaniel Irish, adjoining that of Nicholas Opplinger, where Benjamin Franklin stayed all night, when on his way to Fort Allen, as he tells us. It is now the farm of Chas. Straub. The fort was on slightly elevated ground, at the foot of which a small run of water meanders down to the Aquashicola creek. The importance of its position is easily seen. It commanded the entrance to Lehigh Gap, and was at the junction of the road to Fort Allen at Weissport, on the north, and the road to Fort Norris, on the east. We have been told that it was merely an ordinary blockhouse surrounded by a stockade. We know it to have been built by the settlers, either in the latter part of 1755 or beginning of 1756. We know nothing, however, of the close of its history, but have no reason to doubt that it was abandoned, as a station, during the year 1758, when hostilities had almost come to an end. There is nothing to indicate that it was needed or used again in 1763.

Amongst the settlers who lived in the vicinity of the Fort, during the war, was a Mr. Boyer (his first name we do not know). His place was about 1 1/2 miles east of the Fort, on land now owned by Josiah Arner, James Ziegenfuss and George Kunkle. With the other farmers he had gathered his family into the blockhouse for protection. One day, however, with his son Frederick, then thirteen years old, and the other children, he went home to attend the crops. Mr.

[p.159]
Boyer was ploughing and Fred was hoeing, whilst the rest of the children were in the house or playing near by. Without any warning they were surprised by the appearance of Indians. Mr. Boyer, seeing them, called to Fred to run, and himself endeavored to reach the house. Finding he could not do so he ran towards the creek, and was shot through the head as he reached the farther side. Fred., who had escaped to the wheat field, was captured and brought back. The Indians, having scalped the father in his presence, took the horses from the plough, his sisters and himself, and started for Stone Hill in the rear of the house. There they were joined by another party of Indians and marched northward to Canada. On the march the sisters were separated from their brother and never afterwards heard from. Frederick was a prisoner with the French and Indians in Canada for five years, and was then sent to Philadelphia. Of Mrs. Boyer, who remained in the blockhouse, nothing further is known. After reaching Philadelphia, Frederick made his way to Lehigh Gap and took possession of the farm. Shortly after he married a daughter of Conrad Mehrkem, with whom he had four sons and four daughters. He died October 31, 1832, aged 89 years.

I desire here to express the obligation under which I rest to Col. Jno. Craig of Lehigh Gap, for courtesy shown me and much valuable information given in connection with Fort Lehigh, and other points in this vicinity.

Mr, Craig, who is now 65 years old, was told all about the Fort, its location and garrison, by his father, who received it directly from Mr. Frederick Boyer, who was an actor in the bloody drama just given, and whose return from captivity we have just recorded. He was also given the same information from sundry other old persons.

A tablet should certainly be erected to mark the site of Fort Lehigh, and, I think, should be placed aside of the public road near it.”