Gisborne Photo News index to pages mentioning "Thomas Smiler" - one in 1966 has Tom junior with "coming-of-age" daughter Caroline and wife (detailed under "children" notes); the other, dated Nov 1972, has "Pictured at Muirs Bookshop are, from left, Witi's father, Mr Thomas Smiler, the author (who is a member of the Te Aitanga-a-Mahaki and Ngatiporou tribes) and Mr E. S. Toogood." Both of those pages have clear photos of the Smilers.
Son Witi became a distinguished New Zealand diplomat and author.
From Witi's memoir Halcyon, we learn that Witi's only siblings in the summer of 1951-52 were girls called Kara and Pare. The three children stayed "up the Coast near Ruatoria" with "Nanny Caroline" (an aunt of Julia's), for a while during that summer. Nanny Caroline was married to Uncle Pita (who said that Caroline was his auntie) and they had 12 children: Tamihana the eldest ("nearly as big as Dad"), then Grace, George, Albert, Kararaina, Hone (in Standard 1, as was Witi, though two years older), Sid (about the same size as Witi), Kopua, Sally, Kepa (4), Whiti, and Emere. After Kararaina there had been another brother: "Jimmie Tapanui, died 1947". (The Gisborne Photo News has nobody with surname "Tapanui" but has over 20 with surname "Keelan" though few if any seem to belong to Pita and Nanny.)
Daughter called "Vikki" or "Viki" in some news media but really Vicki, mentioned above as a hockey player, became - with some help from her first husband - the mother of the first Maori to join the British Royal family.
Polly or Pare, who married a Crawford, had parents-in-law Apirana Te Waaka Crawford (1905-1986) and Hariata Maurirere (-), who had about 16 children; ancestry is shown on Geni.com only for Apirana. Polly's only actual appearance in the Photo News was in a 1963 Queen Carnival as one of the princesses
Elizabeth Smiler: debutante in 1963 (see notes for Josephine, below); no other mention in Photo News.
Josephine (or "Joe" in a Bay of Plenty team?) Smiler, who appeared in the schoolgirls hockey team in 1959 (under coaches Mrs F. Poole and Hani Smiler) but had graduated to what became the NZ champion women's team by 1967. In 1963 she was a debutante at the Gold and Green Ball, as were Caroline Smiler and Elizabeth Smiler.