On Sep 10, 2024, at 7:41 PM, Jon Elson via cctalk
<cctalk(a)classiccmp.org> wrote:
 ...
 Another big crack was an Irish navy officer had been killed, and with his family's
permission, papers with disinformation on the D-day attack were put in his pockets.  Tunny
intercepts later showed the Germans were moving positions based on this disinformation,
and it helped the invasion go better for the allies. 
I think you're talking about "Operation Mincemeat", the subject of a quite
good recent movie.  The body in question was Welsh, not an actual officer but a
"legend" was created out of whole cloth for an imaginary officer.  See Wikipedia
for the whole story,  which includes a picture of his grave marker that shows both names.
        paul