Heathkit H8 emulators

Things are jumping over at www.sebhc.org , with more than 70 members committed to the preservation of Heathkit 8-bit computers - come take a look. Several of us have tried unsuccessfully to get in touch with either Dave Shaw or Dave Wallace, both of whom created websites featuring H8 emulation, one Mac-based, the other Windows-based. While email addresses are available, no-one has had a recent response from either Dave. Can anyone on classiccmp provide some help - 1) working email addresses for Dave Shaw or Dave Wallace, or possibly for reviewers of their emulators, including Larry Bledsoe, Steve Novosad, Charles Horn, Neal Granroth, Stanley Webb, or Bob Myers; 2) did anyone download the emulator source or support files from Dave Shaw's defunct website? Any help appreciated! Jack