I missed a part of this obituary when I photographed it, but this does link to your Alexander line:
THE BLOOMFIELD DEMOCRAT, Bloomfield, Greene County, Indiana, Thursday, June 1, 1911, Volume L, Number 22, Page 3, Column 4, “ANTHONY HERT.”[Transcribed 11 Apr 2002 from a digital photo of the original newspaper contained in the records of the Recorder of Greene County, Court House, Bloomfield, Indiana.]
Anthony HERT, aged 78 years, died at his home in Baker Township, Martin County, May 22.The deceased was born near Dresden, Greene County in 1833.At an early age he moved his residence to Martin County, was united in marriage to Mary A. COOPER on February 24, 1853.To this union were born eight children, three of whom preceded him to the grave.Those surviving him are Lovell and Marshall of Colton, California.Mrs. Genettie ALDRIDGE of Lyons, William and Mrs. Sarah A. CONDIFF of Shoals.His wife ………..united in marriage to Jerusha E. ALEXANDER on May 18, 1865, and to this last union were born ten children of which five survive him, Thomas J. of Owensburg, Mrs. Mary A. BROCK, Martin L. and Mrs. Iva M. JOHNSON, of Shoals, and Mrs. Pricilla F. LEWIS, of Terre Haute.After short services Wednesday by Rev. HATFIELD, the remains were laid to rest in Pleasant Grove Cemetery, Martin County—Shoals News.
Mr. HERT was an uncle of J. G. HERT, and Mrs. Alice FIELDS of Bloomfield, and grandfather of Prof. ALDRIDGE of Switz City, one of the candidates for County Superintendent.
NOTES—RLJ: DIRECTORY FOR CENTER CEMETERIES, CRANE DIVISION, NAVAL SURFACE WARFARE CENTER CRANE, INDIANA, JANUARY 1996, Index Page 12, 1/31/1996, Pleasant Grove Cemetery, Lot 99: HERT, Anthony 3/14/1833—22 May 1911; HERT, Jerusha E., 15/05/1837—12/18/1919
Also, I found in the above reference:
Page 2, Pleasant Grove Cemetery, Martin County, IN:
Lot #106: ALEXANDER, Jamesb.08/06/1810d.07/06/1881
Lot # 91: ALEXANDER, Johnb.11/25/1812d.12/27/1908
Lot # 91: ALEXANDER, Lucyb.01/01/1816d.08/30/1888, wife of John ALEXANDER.
Lot #107: ALEXANDER, Maryb.02/07/1835d.08/25/1922.