Leguerney songs with Flute, harp and string trio

I was looking up something in the catalog that Mary Dibbern put together of all of the manuscripts in Jacques Leguerney's papers at the time of his death and came across the following entry :

OL78.
3 PoËmes de la PlÈiade, instrumentÈs pour le Quintette†?
Manuscrit partition au crayon, 28 pages.
Harpe, flute, violon, alto, violoncelle.
(A la Fontaine Bellerie, Chanson triste, Villanelle)

It seems quite clear to me that the mysterious Quintette referred to here must be the Quintette Instrumental Pierre Jamet which was directed by this famous harpist (he premièred the Sonata for Flute, Harp and Viola by Debussy, among many other pieces). Among the many composers who wrote for this ensemble (Jolivet, Desportes, D'Indy, Koechlin, Tomasi etc etc etc), Germaine Tailleferre arranged a Scarlatti sonata for this ensemble and Françaix wrote two quintettes for them. It seems quite clear to me that this must have been the ensemble that Leguerney was writing for. I'm wondering if the Trio for Harp, Violin and Piano was written for Jamet as well?