Here are a couple census records you might find helpful. If you go to Family Search and type in his name a few things come up. His father looks to be Henry B Kaercher born in Canada in 1862.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:KQZY-VQ7 : accessed 6 June 2018), Harvey B Kaercher, Baldwin Township, Allegheny, Pennsylvania, United States; citing enumeration district (ED) 2-13, sheet 8B, line 54, family 158, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 3397.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MGQC-F27 : accessed 6 June 2018), Harvey B Kaercher in household of Henry B Kaercher, Penn, Allegheny, Pennsylvania, United States; citing enumeration district (ED) ED 254, sheet 3A, family 43, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1298; FHL microfilm 1,375,311.
"Florida Death Index, 1877-1998," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VVQB-W6V : 25 December 2014), Harvey B Kaercher, 06 Oct 1979; from "Florida Death Index, 1877-1998," index, Ancestry (www.ancestry.com : 2004); citing vol. , certificate number 76809, Florida Department of Health, Office of Vital Records, Jacksonville.