According to information I have, Rachel died May 1, 1870. Her tombstone indicates that she was 51 years, 4 months and 2 days old, which means her birthdate was December 30, 1818.
This information is from a reading of the cemetery that was performed some time ago. Located in a field in South 43 acres, NE1/4 Section 1, Twp 35 N, Range 3 can be found the William Munson Private Cemetery, Freedom Township, LaSalle County, Illinois. The following people are buried there:
*Rachel (Hall) Munson, wife of William Munson died May 1, 1870 aged 51 years, 4 months, 2 days.
*William Munson, died Feb. 16, 1879 aged 72 years, 4 months, 11 days.
*Infant son of Wm and R Munson died Nov. 2, 1854
*Hiram Munson died July 8, 1836 aged __5 years 12 months 3 days (age?) According to a note on page 260 in Volume 2 of the History of LaSalle County, Interstate Publishing Company, "...Hiram Munson came in March 1833 and died in July 1836 at the home of his brother Wm. Munson, the second natural death in Township...". This person must have been born between 1801 and 1811, to have been William's brother, so it's supposed he aged 25 or 35 years. Apparently the inscription on the stone was unreadable, so the cemetery record omits his complete age.
*Sarah A., dau. of W & L L Miller died Feb 16, 1838 aged 1 year, 5 months, 21 days
*Sylvester E. son of D E & Sarah Newell died Aug 15, 1856 aged 2 years
*William Kindle died March 22, 1844, aged 19 years 6 months
Sarah A. Miller may be related to the Hall family via the Henry J. Miller family...Henry Miller married Sally Hall, William Hall's sister. No link between Sylvester E. Newell has yet been established between him and the Hall/Munson families. William Kindle is thought to be the son of Temperance Hall, eldest sister of Rachel, and Temperance's 1st husband, Mr. Kindle (whose first name is not known). Temperance is my ggg-grandmother through her 3rd marriage to Thomas J. Potter.
Rachel Hall and William Munson lived at the farmstead settled by Rachel's father, William Hall. William Hall, his wife Mary, and their youngest daughter were killed in the Indian Creek Massacre at the home of William Davis. Rachel and her sister Sylvia were kidnapped by their attackers and later ransomed. Their three brothers, John, Edward, and Greenberry escaped the attack. Temperance did not live with the family at the time, and, thus, was not directly involved in the incident.
After the massacre and the Indian scare William Munson and his new bride, Rachel (they were married March 7, 1833) settled at Rachel's father's original homestead. They spent the rest of their days there. Although I have not found it myself, I'm sure a search of the 1870 census in Freedom Township, LaSalle County will yield a listing for William Munson. Rachel likely, would have died by the time of the census.
I have much information about this family. Please contact me if interested.