[1] He was the Basnayake Nilame of the Kelaniya Raja Maha Vihara, a post later taken up by his son Shalitha Wijesundara, former chairman of the Sri Lanka Airports Authority and current Provincial Councilor, Western Province.
His youngest daughter Lakmini WIjesundera, founder and CEO of BoardPAC and IronOne Technologies is the Entrepreneur of the Year in Sri Lanka for three consecutive years since 2015 and has been the first Ernst & Young EY Winning Woman to represent Sri Lanka.
Although his loss created an irreplaceable void, his family, associates and fellow academics have made great efforts to take his legacy forward.
As a Tribute to the incredible legacy of him, Professor Stanley Wijesundera Memorial Lecture was started in 2007 led by Prof. Kamani Tennakoon and Prof. Eric Karunanayake and it is carried out annually.
On 10 December 2023, To mark his 100 year birth anniversary a commemorative first day cover and stamp was issued by the Postmaster General of Sri Lanka, S.Sathkumara at a special function organized at the Temple Trees.