Generally, looking at turn of the century (c. 1900) bicycle ads, the head tube angle and seat tube angle were very slack compared to today's frame geometry. I took some measurements from this 1899 Schwinn World track bike and plugged in linear dimensions to suit me. It was just an exercise to see if it might make sense to build a bike using TIG-welded modern air-hardening steel tubing one of these days.

These bikes had a lot of trail and the stems had no forward extension. The 3-1/2" BB drop (88.9mm) seemed too low with modern 622cm BSD rims and skinnier tires, so I raised the BB so the drop is 70mm.

I don't know if this helps at all, but I'm posting it FWIW. The chainring and rear cog are "skip-tooth", so 30t x 9t is really 60t x 18t.