John Singelton GROMER, son of Henry Greenfield GROMER and Mary Polly McBROOM, was born in Orange Co IN., 23 May 1842, From his pension file, 6 feet tall, fair complexion, blue eyes, light hair, farmer. Under Capt Bivins Co. E 66th Regiment, Indiana Infantry Vol 8 Aug 1862, 1862, Aug. 30-Taken Prisioner Battle of Richmond, Kentucky, discharged 26 May 1863.
| Date | Event | Resource |
| 1842 | 23 May born Orange Co., IN. | Pension File. |
| 1850 | enum. with parents North West Twp, Orange Co., IN. | Census |
| 1860 | 11 March married Lucinda Fox in Martin Co., IN. | Pension File. |
| 1860 | enum. with parents & Lucinda in North West Twp, Orange Co. | IN. Census |
| 1861 | 5 Jan son Charles W. born IN. | Census & Pension File |
| 1862 | 8 Aug entered Civil War- CO. E, 66 Reg Indiana Infantry, US Army. | Pension File |
| 1862 | Aug. 30-Taken Prisioner Battle of Richmond, Kentucky. | Pension File |
| 1862 | Sent to Indianoplis, IN. | Pension File |
| 1863 | May 26, discharged Indiaapolis, IN. | Pension File |
| 1863 | Oct., son Henry G. born IN. | Census & Pension File |
| 1865 | 13 Oct daughter Mary Emily born, IN. | Census & Pension File |
| 1866 | Jun daughter Nancy Ann born. NW Twp., Orange Co., IN. | Census & Pension File |
| 1869 | circa daughter Rhoda Alice born Orange Co., IN. Census & Pension File | |
| 1870 | enum. with wife Lucinda and children Orange Co., IN. | Census |
| 1874 | Dec son Alva D. born Orange Co., IN. | Census & Pension File |
| 1875 | 25 Aug. Wife Lucinda Fox Gromer dies Orange Co., IN. | Pension File. |
| 1876 | 5 Oregon 26 Jan. married 2nd wife, Eliza Jane Shafer, Williow Hill,Jasper Co., Illinois. | Census, Bible & Pension File. |
| 1877 | 9 Feb. daughter Susan Frances born Indiana. | Bible & Pension File. |
| 1878 | 20 Sep. daughter Bee born. | Bible & Pension File. |
| 1879 | Nov daughter Emily Gromer marries Stephen Scarlett in Orange Co IN. | |
| 1880 | Enum with wife Eliza and children Martin Co., IN. | Census |
| 1881 | 18 Feb. daughter Nora born. | Bible & Pension File. |
| 1882 | circa, daughter Nancy Ann Gromer married James Barbre | |
| 1883 | 18 Sept. son Gorge (George) born IN. | Census, Bible & Pension File. |
| 1884 | Step son Henry Gromer married Margaret Yount in Bollinger Co MO. | |
| 1884 | Oct Son Charles W. Gromer married Sarah Jenkins White Co., Illinois | |
| 1885 | 3 Jan. Mother of John, Mary Polly McBroom Gromer dies Orange Co., IN. | |
| 1885 | Feb. treated by a doctor in Patton, Bollinger Co. | Missouri Pension File. |
| 1885 | Daughter Rhoda Alice married in Bollinger co MO to Thomas YOUNT | |
| 1886 | treated by a doctor in Patton, Bollinger Co., Missouri | Pension File. |
| 1886 | 29 May, son Hugh T. born. Missouri | Census, Bible & Pension File. |
| 1888 | May 8 son George dies. ?MO? | Bible & Pension File. |
| 1888 | 22 June, son Jessie A. born Missouri | Census, Bible & Pension File. |
| Lived for a time White Co., Illinois per his note in his Pension File | ||
| 1890 | 19 Nov. daughter Bee dies. ?MO? | Bible & Pension File. |
| 1891 | 18 Feb son Earl born Missouri | Census & Bible. |
| Earl is NOT listed in Pension File. | ||
| 1891 | Son Alva D. Gromer marries Susan Yount Bollinger co MO. | |
| 1891 | 25 Oct. resid. near Marquad, Bollinger Co., Missouri | Pension File. |
| 1892 | 8 April daughter Dora born Missouri | Census, Bible & Pension File. |
| 1895 | 23 Sept. father Henry Greenfield Gromer dies, Orange Co., IN. | |
| 1900 | enum. with wife Eliza and children Ripley Co., Missouri | Census. |
| 1910 | Federal Census, Cleburne County, Heber Township, Arkansas, | LDS film number #1374059. |
| 1919 | resid. Cleburne Co., Arkansas Pension File. | |
| 1920 | enum. with wife Eliza, son Hugh GROMER in Herber Springs, Clebune Co.,ARK. | Census |
| 1921 | 4 November resid. Cleburne Co., Arkansas | Pension File. |
| 1924 | May 15 died Herber Springs, Clebune Co., Arkansas. | Pension File & death certificate. |