HP1 - American professor, medievlaist and sff writer
HP2 - Brit, dog books
HP3 - South African, MS sufferer
HP4 - West Virginia writer, Dark Wings
HP5 - Helen Phillips (Hayter), American sculptor
Note that the cross-stitch author is spelled 'Philipps' (1 L, 2 P's). This is the author page for Helens spelling their name Phillips (2 Ls, 1 P).