This village near the mideastern boundary of the county was founded in 1912, and retained the name of the rural post office established here on this date in 1886 - a century ago - with Robert Clemdenning as the first postmaster. The post office closed on September 30, 1897, mail being sent to Corrine until the Glenfield office was reopened February 11, 1898. It again was closed October 31, 1902, with mail to McHenry until the office was re-established on September 28, 1912. The name is believed to be descriptive of the local topography.
Information from our present postmaster states that when the post office opened February 11, 1898, Thomas Bradford was the postmaster.
On December 30, 1912, Lottie Posey was commissioned postmaster for Glenfield and the first mail was received and the office opened on February 15, 1913. The first post office was located on the east side of the street in Augusta Johnson's confectionery store later moved to A. W. Johnsons place of business. In 1917, the post office was in Carl McDaniel's store. That year Lottie purchased the confectionery business from Augusta, moved the post office in and remained there until 1931, when it was moved into the bank building.
Lottie served in this capacity until her retirement 46 years later. During most of these 46 years, she combined the post office with her confectionery business and was one of Glenfield's very staunchest supporters. Lottie retired in 1958.
Clerk Byrd Jacobson was appointed acting postmaster until August 1960, when John Halvorson was appointed postmaster.
The post office moved into its new building in December 1962.
Rural carrier Henry Hendrickson retired June 3, 1977, after completing 47 years of service. Substitute carrier Kenneth Walen hauled mail until the route became a contract route. Roger Kolpin became rural carrier June 23, 1977.
John Halvorson retired December 20, 1984, with 40 years as a postal employee. Donna Halvorson was appointed officer in charge and was appointed postmaster March 4, 1985. Eunice Papenfuss was appointed postmaster at McHenry, North Dakota, in August of 1985. Judy Bartlett was appointed casual clerk August 3, 1985.
Source: Glenfield History 1886 – 1987 Page 4