Unit ID on WW1 canteen cover & cartride belt, please help

[navyfamily]

Hello all! I am finally getting around to ressearching some WW1 field gear I have and I can't seem to identify the unit markings on a canteen cover and cartridge belt. The cover is marked "HT 28" and either "HD 27" or "MD 27". The cartride belt reads "342" followed by an H or an R and a 35. Anyone have any ideas? 

[Marchville1918]

I would say that the belt marking is 342 regiment, H Company, 35 man on the roster. cant tell what kind of regiment without a symbol like crossed rifles etc.