The following info comes from William Starr Easton's 1899 "Descendants of Joseph Easton, Hartford Conn., 1636-1899,"
page 85.Note:The number 126 at the head of the quote and the (65) after her father's name refer to family group numbers in the book; the numbers 7, 6, 5, etc., following the names of Mary and her Easton ancestors in the first line refer to number of generations from Joseph Easton (1602-1688), the English emigrant who founded Hartford, Conn. in 1636:
Mary Smith7 Easton (Rufus6, Joseph5, Elijah4, Joseph3, Joseph2, Joseph1), dau. of Rufus (65 ) and Alby Abial (Smith)
Easton, was b. Jan. 24, 1800, in Rome, N.Y. She m. Aug. 10, ---, Major George Champlin Sibley, at St. Louis, Mo., who
was b. April 1, 1782, in Great Barrington, Mass., the son of John Sibley.
Maj. George C. Sibley d. Jan 31, 1863, St. Charles, Mo.
Mary S. Sibley d. June 20, 1878, age 78, St. Charles, Mo.
Mary S. Easton Sibley received a liberal education, attending a female institution in Lexington, Ky., to which place and back to
St. Louis she made the journey on horseback. She was married to Maj. Sibley when about fifteen years of age, and they
removed at once to the Indian country, at Fort Osage, near where Independence, Mo., is now situated, Maj. Sibley being in
the employ of the government as Indian Agent. Here they remained for several years, afer which they returned to St. Louis,
whence they again started for the Indian country, by land to St. Charles, with the view of taking a boat for Fort Osage. While
waiting for a boat in that place, it occured to Maj. Sibley to examine a tract of land which he had located there, and seeing it for
the first time, he was so pleased with the quality of the soil and surroundings that they resolved to settle on it permanently. With
this object in view they erected a log cabin where now stand the improvements which have grown up under their fostering care.
This was in 1828, and from that time to the day of her death Mrs. Sibley resided on the Lindenwood property, dispensing with
a liberal hand the many charities suggested by the generous impulses of herself and husband, leading a useful and Christian life,
and enjoying the respect and esteem of the community, with the love and devotion of all who knew her intimately.
Mrs. Sibely was a lady of fine literary taste and with her husband founded and endowed the Lindenwood Female Seminary at
St. Charles, giving the land on which it is built.