More individuals marked on photographic postcards

A purple indelible ink cross, the image is of AIF solders WW1. Two marks on the reverse 5/1015 & #5 -?

Large scribbled dot and two horizontal marks, nothing on the reverse.

"The Camp, 27th July 1909. Dear Frank, I hope you are still enjoying yourself in this country. The one with the (X) is our Col. & the other is the adjutant. I am not in this one as I was away on duty. John Davie".

9th Royal Scotts marching out Aberdour 1909.

People marked with a cross on group photographs

I count 24 crosses if you look closely at their attire + the two (X)'s

"Ruby marked (X), the other is me". This is a very early one collected, it is the start of the section entitled - (two women).

"Myself and 2 friends" in pen ink on the front of the card, 1903 on the reverse in pencil.

"This one was taken at the Highland Games - Emily". The pen writing is scribbled out with pencil on the reverse. There's a note on the back where I noted the names of other cards when found - "Bennett - King Island - Humphrey - Victoria.