Although only 30 could attend the church service in Swinton because of Covid restrictions, dozens of others gathered outside.
Lewis, aged 20, was shot dead in Mexborough, Doncaster, last month in what is being treated as a targeted attack.
Seven people have been charged so far in connection with the fatal shooting.
1. FUNERAL
Friends and relatives gathered in Swinton yesterday for the funeral of gunshot victim Lewis Williams, aged 20. Photo: JPI Media
2. FUNERAL
Lewis Williams was shot dead in Wath Road, Mexborough, Doncaster, on Monday, January 11 in what is being treated as a targeted attack. Photo: Scott Merrylees
3. FUNERAL
Despite the efforts of medics who battled to revive him at the scene, Lewis could not be saved. A post mortem revealed he was shot in his neck and face. Photo: Scott Merrylees
4. FUNERAL
Under Covid rules, only 30 mourners could attend yesterday's church service in Swinton but dozens more turned up to pay their respects outside. Photo: Scott Merrylees