Tobias Müller was the oldest son of Michael Müller II, stained glass painter in Zug. Bergmann (2004, pp. 95–97) has suggested a number of panels from the Müller circle that could be the work of Tobias or his younger brother Paul.
Bergmann, U. (2004). Die Zuger Glasmalerei des 16. bis 18. Jahrhunderts. Corpus Vitrearum Schweiz, Reihe Neuzeit 4. Bern: Benteli Verlag.