Eliyahu Pinchas Hepner

Explanation with regards to the difference between the date of birth on the headstone (and birth records) and the other date of birth which is in his profile here:
When Poland was partitioned on Aug 5, 1772, the Russian partition reverted back to the Julian calendar. That partition remained on the Julian calendar until Jan 31, 1918 when Russia converted to the Gregorian calendar.
Julian Calendar Date of Birth: 21st of June 1879.
Gregorian Calendar Date of Birth: 3rd of July 1879.
Hebrew Calendar Date of Birth: 12th of Tamuz 5639 (י״ב תַמּוּז תרל״ט).

Learned in the Lomza Yeshiva.