Henry Sydney Buchanan      

Servicenumber : 276993
Rank : Captain
Regiment : Royal Artillery
Unit : 1 Forward Observation Unit
Date of Death : 19-09-1944
Age : 30
Grave :
Henry Sydney Buchanan was a son of Captain A. Buchanan and Mrs Buchanan. He was married to Emily Buchanan of Macclesfield, Cheshire. He was attached to the 2nd Battalion, The Parachute Regiment. He landed near Wolfheze on 17 september 1944 and managed to reach the bridge at Arnhem. 
Buchanan has no known grave. His name is on panel 1 of the Groesbeek Memorial, which commemorates by name more than 1000 soldiers who died during te campaign in north-west Europe between the time of crossing the Seine at the end of August 1944 and the end of the war in Europe, and whose graves are not known.
According to the Roll of Honour published by the Society of Friends of the Airborne Museum (Jan Hey 1999 and 2011) Buchanan was killed by a shell near the Rhine bridge at Arnhem.
The author of the book 'The Gunners at Arnhem' (Peter Wilkinson) wrote about Buchanan. On page 83 and 84 he wrote about 20 september 1944: "The survivors at the bridge were keeping up their stubborn resistance to persistent and increasingly vigorous attacks by SP guns and tanks aimed at systematically detroying the occupied buildings from the top downwards and setting them on fire. Major Munford at Brigade HQ and Captain Buchanan (1st FOU) from his observation post to the east of the bridge were still in wireless touch with 3 Battery command post and directing battery and regimental shoots on targets immediately in front of their positions and on the area south of the bridge."
On page 85 he gives a descroption of the same day that was written by Major Dennis Munford: "The cellars were crowded with wounded; we left Hall with the MO's and returned to salvage our gear. The 68 set was still functioning but we were unable to contact Captain Buchanan, the FOU east of the road by the river. Later, as a POW, I heard that a bomb or shell through the roof of the OP had killed them all but, as far as I know, 'Buck' was never found."
Sources: Website CWGC, 'The Gunners at Arnhem', website www.marketgarden.com and Roll of Honour