OK, here's the answers: Strictly speaking, they were ALL taken on digital, at least in the sense that to digitize slides and negatives, I rephotographed the slide or negative at approximately 1:1 scale using either a D200 or D700 modern digital camera.
On the other hand, in the sense of how these images were originally captured:
Building & Walkway - Nikon D200 about 5 or 6 years ago. Antique paper and other efx added in post production.
Women in kitchen - Classic Nikon F, classic pre-AI 50mm / f2 on pushed Tri-X. Clare estimate of the year was right on the mark: this was taken in the early '60's in the somewhat down-at-the-heels home shared by my mother's aunt (RHS) and cousin (standing, background). The room was incredibly dark. I seem to remember there being only a couple of weak bare tungsten bulbs for light. I didn't have a tripod, so I think I braced myself and the camera against a cabinet or door frame.
Silhouette of tree - Even though this was taken about a decade later (ie, around 1972), I was still using the same equipment as in the previous shot, but this time, I shot the scene on Kodachrome II (ASA 25), a year or two before Kodak introduced K-25. This was a several minute nighttime exposure of ground fog that had settled on farmland in-between ridges in upper NY state. Conversion to B&W was again done in post processing.
Crossed hands - I shot this at a wedding in the late 1990's with my backup Nikon N70 and probably my pre-VR 105/2.5 AFD on low contrast Fuji pro print film from that period, either NPS or NPH.
I took all the remaining shots with either a Nikon d200 or d700 in the last 7 or so years and converted to B&W in PS.
To me, B&W is a wonderful way to capture the surrounding world. I hope it's popularity never fades.
T