Career
Kellogg was also one of the leading advocates of the change in American Evangelical theology from postmillennialism to premillennialism between 1870 and 1910. Samuel Henry Kellogg is also remembered for his brilliant treatise on Hindi grammar called HINDI VYAKARAN. This book was published by Hindi Sahitya Sammelan, Prayag (Allahabad). That textbook on Hindi grammar is still considered a fine textbook.
Especially, the way he explains Hindi genders to non-native speakers is brilliant.