He also learned instrumentation, violin, and harmony under various other teachers, including Egmont Froelich, Ernst Spiering, Charles Kunkel, Wilhelm Goldner, and W.

Because so many people enjoyed the concerts he put together at the World Fair, the French Academy elected him an Officer.

[4] The same year that he was the Master of Programs for the St. Louis World Fair he became the Director of the Kroeger School of Music, and kept that position until he died.

[7] Kroeger's compositions were played all around the United States and Europe during the first couple decades of the 20th century.

His son, Richard Clark, served in the World War as a color sergeant of the three hundred and fifty-third infantry of the eighty-ninth division.