Edwin Marion Wynkoop (First_Last)^{6, 7}
Regiment Name: 1st District of Columbia Infantry.
Company: K.
Soldier's Rank_In: Quarter Master Sergeant.
Soldier's Rank_Out: Quarter Master Sergeant.
Enlisted: ?.
Place of Enlistment: Washington, D.C.(?)
Mustered In: ?
Mustered Out: Discharged abt. November 16, 1898.⁶
Place of Discharge: Washington, D.C.?⁶
Age: ? years, ? months.
Height: ? feet ? inches.
Complexion: ?
Eyes: ?
Hair: ?
Where Born: ?
Occupation: ?
Married or Single: ?
Alternate Name: Edward M. Wynkoop.
Notes:

Edward M. Wynkoop (First_Last)⁴
Regiment Name: 1st District of Columbia Infantry.
Company: ?(unreadable).
Soldier's Rank_In: Quarter Master Sergeant.
Soldier's Rank_Out: Quarter Master Sergeant.
Enlisted: ?.
Place of Enlistment: Washington, D.C.(?)
Mustered In: ?
Mustered Out: Discharged ?
Place of Discharge: ?
Age: ? years, ? months.
Height: ? feet ? inches.
Complexion: ?
Eyes: ?
Hair: ?
Where Born: ?
Occupation: ?
Married or Single: ?
Alternate Name: Edwin M. Wynkoop.
Notes:

David Henry Wynkoop (First_Last)^{1, 2, 4}
Regiment Name: 31st Regiment Michigan Infantry.
Company: K.
Soldier's Rank_In: Private.
Soldier's Rank_Out: Private.
Enlisted: April 26, 1898.
Place of Enlistment: Detroit, Wayne Co., Michigan.
Place Mustered in: Island Lake, (aka Brighton), Livingston Co., Michigan.
Mustered In: 10 May 1898.
Mustered Out: Discharged 17 May 1899.
Place of Discharge: Savannah, Georgia.
Age: 22 years, 10 months.
Where Born: Saginaw, Saginaw Co., Michigan.
Occupation:
Married or Single:
Alternate Name:
Notes: Departed the U.S 1/27/1899 - Arrived Cuba 2/1/1899 for Occupation Duty. Departed Cuba 4/13/1899 - Arrived in U.S 4/16/1899. Honorably Discharged 5/17/1899 at Savannah, Georgia. Eligible for Spanish American War Service Medal and the Army of Cuba Occupation Medal. 6/23/1927 - He was granted a Pension of $30.00. Buried: Rose Land Cemetery, Berkley, Michigan. Buried in the Spanish American War Veterans Section.

Harry B. Wynkoop (First_Last)^{4, 5}
Regiment Name: 6th Regiment Missouri Volunteer Infantry.
Company: G.
Soldier's Rank_In: Private.
Soldier's Rank_Out: Lt. Bty A.
Enlisted: July 11, 1898.
Place of Enlistment: St. Louis, Missouri.
By Whom: Capt. Knox.
Period: 2 years.
Mustered In: July 20, 1898.
Where: Jefferson Bks, Mo.
Mustered Out: Discharged March 10, 1899.
Place of Discharge: ?
Age: ? years, ? months.
Height: ? feet ? inches.
Complexion: ?
Eyes: ?
Hair: ?
Where Born: ?
Occupation: ?
Married or Single: ?
Alternate Name:
Notes: Discharged Mar. 10, 1899, per instructions of Secty. of War.⁵

Charles W. Wynkoop (First_Last)^{2, 4}
Regiment Name: 1st Regiment, U. S. Volunteer Cavalry.
Company: E.
Soldier's Rank_In: Private.
Soldier's Rank_Out: Trooper.
Enlisted: May 3, 1898.
Place of Enlistment: Santa Fe, New Mexico.
Mustered In: 6 May 1898.
Mustered Out: Discharged 15 Sep. 1898.
Place of Discharge: Camp Wikoff, L. I.
Age: 27 years, 4 months.
Height: 5 feet 11 1/4 inches.
Complexion: Light.
Eyes: Blue.
Hair: Red.
Where Born: Stanhope, Pennsylvania.
Occupation: Tinner.
Married or Single: Single.
Alternate Name:
Notes: Rough Riders.

Harman H. Wynkoop (First_Last)^{2, 4}
Regiment Name: 1st Regiment, U. S. Volunteer Cavalry.
Company: E.
Soldier's Rank_In: Corporal.
Soldier's Rank_Out: Corporal.
Enlisted: May 3, 1898.
Place of Enlistment: Santa Fe, New Mexico.
Mustered In: 6 May 1898.
Mustered Out: Discharged 15 Sep. 1898.
Place of Discharge: Camp Wikoff, L.I.
Age: 25 years, 6 months.
Height: 5 feet 11 1/2 inches.
Complexion: Dark.
Eyes: Grey.
Hair: Dark.
Where Born: Harrisburg, Pennsylvania.
Occupation: Printer.
Married or Single: Married.
Alternate Name:
Notes: Rough Riders. Appointed Corp. per Nerb. O. tp. comdr May 6-98. Wounded in line of duty & sent to hospital July 2-98. Returned to duty Sept. 4-98. Hospital at Fort Monroe, Va.

Sources:

    [1] Patricia A. Robinson Cole, [email protected], granddaughter of David Henry Wynkoop.

    [2] Anonymous, Michigan Volunteers of '98; A Complete Photographic Record of Michigan's Part in the Spanish-American War of 1898, Detroit, Mich., G. F. Sterling & Co., [1898], pp. 91, 92.

    [3] National Archives, Military Files, Washington, D.C.

    [4] Index to Service Records of Volunteer Soldiers in the War With Spain, 1898-9, WR-YOS, National Archives Microfilm M871, Roll 125, National Archives Records Administration, Washington, D.C.

    [5] Soldiers Database: War of 1812 - World War I, Record Group: Office of Adjutant General. Series Title: Register, Spanish-American War, 1898.

    [6] Unknown, "Honors Well Won," The Washington Post, Washington, D.C., Thursday, 17 November, 1898, p 10.

    [7] Unknown, "To Honor Maine Dead," The Washington Post, Washington, D.C., Sunday, 9 February, 1913, p. 8.

    To the best of my knowledge these are the only Wynkoops who served in the Spanish American War. The original information for Charles and Harman Wynkoop came from digitized versions of the Compiled Military Service Records at the National Archives Digital Collection, in Washington, D.C.

    For those of you interested in such things, Charles and Harman were sons of Col. Edward Wanshaer Wynkoop, (1836-1891), of Sand Creek fame.

    Additional information on Edward M., and Harry B. Wynkoop came from Xeroxes of their General Index Cards that I made in 1999 or so, down at the Philadelphia branch of the National Archives. It was only recently that I rediscovered these among my notes. If anyone has access to the full files for these men and would like to help fill in the large blanks I have in their service records, please contact me at the email address below.

    I would like to thank Patricia A. Robinson Cole, [email protected] for answering my query regarding her grandfather on the Ancestry.com Wynkoop Family Message Board. The information she sent me was quite detailed and I'm extremely gratified to add David Henry Wynkoop's name to this list.

    Pat, thanks so very much for your help.

    If you have additional information on more Wynkoops, or their descendants, who served in the Spanish American War, please contact me at [email protected]. I'd love to hear from you.

    All my best,

    Chris