Family tree▼
Record indicates name as "Clarkson", which is likely his middle name, birth place in Pennsylvania and age at 2 years old (a round up, likely).
"United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/3:1:S3HY-DC1S-99C?cc=1438024&wc=KPV7-C68%3A518666601%2C519002801%2C519026401 : 15 June 2019), Pennsylvania > Chester > West Chester > image 34 of 142; citing NARA microfilm publication M593 (Washington, D.C.: National Archives and Records Administration, n.d.).