My brother in law asked me in 2002 if i would see if i could find out any information about his uncle who was killed in 1944.he as got the MOD telegram stateing his uncle was MIA but no other explanation.Albert Clayworth joined the RAF as a navigator in the 30s ,lived at highfields Doncaster,south yorkshire he was a well educated man who wanted to fly.i got in touch with a dutch site who had lots of info on crash sites of lancaster bombers,they where verry helpfull and put me in touch with a friend who sent me a email with some info about alberts crash.i kept it on floppy and looked at it last week,thought i would share this with you.

412 Lancasters of 1, 3, 6 and 8 groups attacked the Opel motor factory. 15 Lancasters were lost. (3.6% of force)

The Pathfinder marking was accurate and the raid was successfully completed in 10 minutes. An official German report (KTB Luftgaukommando VII, Bundesarchiv.) says that the forge and the gearbox assembly plant were put out of action for several weeks, but 90% of the machine tools in other departments escaped damage. The assembly line and part of the pressworks were able to re-commence work 2 days later and lorry assembly was not affected because of considerable stocks of ready made parts. 179 people were killed in the raid but their nationalities were not recorded.
JB561 300(Masovian)Sqdn BH-B Op: Russelsheim Lost 25-26/08/44
Lancaster BIII by A. V. Roe (Chadderton)
550 Lancasters ordered from A. V. Roe (Chadderton) late in 1941 and delivered as Mk. III from June to December 1943 with Merlin 28 engines initially installed in early production, Merlin 28 or 38 engines at mid-production, and Merlin 38 engines only on late production.
Pilot F/O WHYTE Gordon Gambley 175620
Buried in Durnbach War Cemetery. Grave 1. H. 13
Engr F/Sgt JAGIELLO W Polish Air Force
Buried in Durnbach War Cemetery. Grave 1. H. 9(?)
Nav Sgt CLAYWORTH Albert 1621688
Commemorated on the Runnymede Memorial. Panel 227
B/Aim Sgt ROBERTSON Maurice John 1397798
Buried in Durnbach War Cemetery. Grave 1. H. 10
W/Op Sgt SELLARS Billie 2206501
Buried in Durnbach War Cemetery. Grave 1. H. 11
AG Sgt MOULE John Herbert 1853428
Buried in Durnbach War Cemetery. Grave 1. H. 8
AG Sgt TAYLOR Charles William 1880883
Buried in Durnbach War Cemetery. Grave 1. H. 12

Took off from Faldingworth at 20:17.

Nothing noted about the circumstances of the loss.

This was one of two from 300 Sqdn lost on this night.

This was the first loss of a mixed RAF/PAF crew since the squadron converted to Lancasters
You might be able to gain further details of Alberts service history from:-

RAF Personnel Records
PMA (CS) 2a (2) (RAF)
Building 248a
Personnel Management Agency
RAF Innsworth

My advice would be to write a letter of enquiry to them first asking what
details they need from you, and also asking for an application form. We
have had correspondence with them several times in the past, and
although their turn round time on correspondence is not the fastest, they
are always very helpful.
(Please DO NOT telephone)

Also, you might consider contacting a colleague of mine in Poland, who researches Polish Squadrons

Polish Bomber Squadrons
Wojciech Gadowski
As you can see albert has no grave ! but remembered on a wall of honour.

26 Aug 1944 Avro Lancaster JB561 Shot down by German fighter. Mission to Ruesselheim.
F/Sgt Jagiello KIA Rest of the crew were British airmen (lack of names) temporarily assigned to the squadron.

just above is what is on polishsquadronsremembered website i have emailed them with my info. Thank you for reading my post