Can anyone identify this uniform, please?

[Frosty]

Good detective work, Frank!    I agree - I think I see the A and the F.  The Seaforths are fairly likely, perhaps, as the Flecknell boys' uncle was definitely with that regt.
Very happy with all responses,
  Frosty

[CAN150]

Are you sure this is Jack and Reginald Flecknell in uniform?  Is this Jack Sisil Croft Flecknell?  If so, there is a record of his service but it is with the Royal Navy and not an Army unit.  It is in the UK, Royal Navy Registers of Seaman’s Services, 1848-1939 provided by Ancestry.  Do you know the other people in the photo?  I am interested as I believe we are related through Jack Flecknell.

[Frosty]

Hi CAN150 - thank you for your msg. Not totally sure about any of them apart from Mary Anne Flecknell, whom I have seen in another photo. However, it seems that the tartan uniform was worn by army rather than navy members?  Mary Anne Flecknell nee Severn was my gfather's g aunt.
Frosty