You can try to contact the Somme 1939-1945 association:
https://www.somme-aviation-39-45.fr/contact.html
On the following page, in 2009, they reported having found the crash site of 42-107680 at Belloy Saint Léonard, west of Amiens (and 40 km from Autheux).
https://www.somme-aviation-39-45.fr/...couvertes.html
To be confirmed as this is very close from the location liste for B-26 41-31814 (Warlus, 3 km from Belloy Saint Léonard) in the current list at
http://francecrashes39-45.net/rech_avion.php.