] Does anyone know if there is an on-line resource to know if it's possible to have one year Tuesday November 26h and the following year a Monday August 2nd and what years of late 18th and early 19th centuries could match that criteria?

In all years (except for leap years) when November 26 is on a Tuesday, August 2 is on a Saturday. In a leap year, it is on a Sunday.

Here's a link to a perpetual calendar applet