If anyone is interested in visiting Maidstone, Kent County, England to search for information on William Herndon and Jane Benskin please read this.
I first read about this document in "Six Herndon Immigrants to Colonial America" by John G. Herndon The William and Mary Quarterly, Second Series, Vol. 23, No. 3 (Jul., 1943), p. 333 Published by: Omohundro Institute of Early American History and Culture
I strongly recommend that you make an appointment days before you visit the Kent County Council. They are very nice but do not encourage walk in visits.
The copy is hard to read and only lists the two names of William and Jane and the date. The org of this document is located in All Saints Church, Maidstone but the church is only open for special activities and church services and maybe hard to include in your schedule. If you are luck enough to visit the church it is beautiful and interesting.