William H Swartz Jr. has seen concerts during 23 years.

Year   Concerts Seen  
2023 3 concerts
2022 2 concerts
2021 2 concerts
2020 2 concerts
2019 2 concerts
2018 1 concert
2017 1 concert
2016 1 concert
2015 1 concert
2005 1 concert
1996 1 concert
1995 1 concert
1994 1 concert
1991 1 concert
1989 4 concerts
1988 1 concert
1987 2 concerts
1986 4 concerts
1985 1 concert
1984 3 concerts
1983 1 concert
1982 4 concerts
1980 2 concerts