Marg, Have found,

Elizabeth Eleanor Skillicorn b.1894 at 1 Osborne Terrace, Douglas along with Ethel May Skillicorn b.1893 and a Mr.& Mrs. Wood
Ref RG14 / 34671 / RD635 SD3 ED18 SN124.

Alice (no Lena) b 1903 at New Home, Glencrutchery,Onchan.
RG14 / 34687 / RD635 SD2 ED10/4 SN64

Both on Findmypast.com

No Trace of Harold Richard Skillicorn b.1897 or Gladys Evelyn Skillicorn b.1900, sorry.