Thank you to the people who responded and particularly to the person who sent the complete and accurate translation.
This is a matzevah for two brothers: the older died in the US army in 1918, the younger died in 1976.
The top of the stone says"Sons of Malke" The remainder of the Hebrew on the right side of the
stone says: Here lies the unmarried young man Chaim Mordechai Milka, passed away on 30 Tishrei 5679.
May his soul be bound in the bonds of life."
The date is accurately 6 October 1918, as I have his death records from the US Army.
Avivah R. Z. Pinski , near Philadelphia, USA