Evening MummyG, whilst doing some research on one of my Widnes WW2 casualties who served with the South Lancs, I have come across a reference in September 1939 to a Captain Boast M.C..
We already know that both brothers where awarded the Military Cross in WW2, and that one of the brothers was killed, so I assume that the reference is to the 2nd Brother.
The reference is in the War Diary for 1940, and states that Capt Boast M.C. (Note three men with the surname Boast where awarded the M.C. serving with the South Lancs. was 2 i/c with C Company 1st South Lancs at the time that it mobilised for France and Belgium.
The war diary, then mentions him again being in France in early October 1939, and is later listed as capt S.W.Boast, who when awarded the M.C. was a 2nd Lt. By early 1940 he has been promoted to Battalion major.
On the 18th Feb 1940 - 25th Feb 1940, he is shown as being on Leave in the UK, but by 10th March he is no longer listed in the Officers Nominal role, as on the 9th March 1940 he was appointed as Camp Commandant ROXA, which I assume was a POW Camp.
Do you know if this is one of your Boast's
phil
Nb. The 3rd Boast to win the MC, was Maj. Sydney Thomas Boast, M.C., D.C.M., (2nd Bn. South Lancashire Regt.), whose own son Frederick, was died in 1919 after returning to the UK after fighting on the Western Front.
http://www.cwgc.org/search/casualty_details.aspx?casualty=899832