Your audience is going to expect you to use the best, most correct, most recent, and most reliable information possible so that they can trust in your expertise. Using evidence that does not come from a credible source of information will not convince your reader that your claim is plausible or even correct.
William Golding - Facts. William Golding. Born: 19 September 1911, St. Columb Minor, United Kingdom. Died: 19 June 1993, Perranarworthal, United Kingdom. Residence at the time of the award: United Kingdom. Prize motivation: for his novels which, with the perspicuity of realistic narrative art and the diversity and universality of myth, illuminate the human condition in the world of today.
The world's longest goldfish is owned by Joris Gijsbers and measured 47.4 cm (18.7 in) from snout to tail-fin end. It's the size of a house cat! He is a Red Oranda, and he is 15 inches long! The largest recorded goldfish was 17 inches long!