 If Austinian topic situations play a role in the grammars of natural languages, there should be grammatical devices in at least some languages that track them. Recent work by Andrew McKenzie (McKenzie 2012, 2015) has suggested that certain Switch Reference systems in a number of genetically unrelated languages seem to track Austinian topic situations. For example, the North American language Kiowa (Tanoan, spoken in Oklahoma) uses different forms for certain sentential connectives (including conjunction), depending on whether the topic situations of the conjoined conjuncts changes or stays the same.