He secretary of the Dairy Producers Freezing Company from about 1919 to 1929 when he retired .
Harkness also helped build up of the National Dairy Association , of which he was its President , secretary , and manager .
Harkness secretary of the Dairy Producers Freezing Company from about 1919 to 1929 when Harkness retired .
Harkness also helped build up of the National Dairy Association , of which he was its President , secretary , and manager .