The Cowsills
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- William Cowsill (born: 09 January 1948 died: 18 February 2006)
- 1967
The Rain, The Park & Other Things 
- The Cowsills entered the US charts on 30 September 1967, spent 16 weeks in the charts and reached number 2.- 1968
- We Can Fly - The Cowsills entered the US charts on 13 January 1968, spent 9 weeks in the charts and reached number 21.
- In Need Of A Friend - The Cowsills entered the US charts on 16 March 1968, spent 6 weeks in the charts and reached number 54.
- Indian Lake - The Cowsills entered the US charts on 01 June 1968, spent 13 weeks in the charts and reached number 10.
- Poor Baby - The Cowsills entered the US charts on 14 September 1968, spent 6 weeks in the charts and reached number 44.
- 1969
- Hair - The Cowsills entered the US charts on 15 March 1969, spent 15 weeks in the charts and reached number 2.
- The Prophecy Of Daniel and John The Divine (Six-Six-Six) - The Cowsills entered the US charts on 21 June 1969, spent 4 weeks in the charts and reached number 75.
- Silver Threads And Golden Needles - The Cowsills entered the US charts on 11 October 1969, spent 7 weeks in the charts and reached number 74.