Artist is Alvin H. Thibault, signed lower right. Size is 8x10" on manila paper, titled below the portrait "Capt. J.B. McCudden/Royal Flying Corps". Of course, McCudden, V.C., was a leading ace with 57 kills before he died in the summer of 1918. Very good; some light corner bends and bumps. Should be matted and framed. Likely this was done during WWI since McCudden was awarded the rank of Major and when he died he was in the RAF, not the RFC.