Carol, if you PM me your email address I will send you the image of Ellen's marriage registration as well as George Robert, James Herbert, Rose Diamond Jubilee and William Arthur Varney.
I think I found a marriage for Minnie as well. I couldn't find the marriage registration at Ancestry but there is a form that was to be filled in by the clergyman who performed the ceremony there. It has Minnie Elizabeth Varney marrying Algernon Barrett on 25 Jun 1913. Minnie's father is said to be James Varney, bricklayer but the box for her mother's name is blank.
I'll keep looking to see if I can find one for Maud.
Do you have an exact birth date for Maud? At Ancestry, I can do a search of the 1911 census by inputting her month and year of birth and seeing how many Mauds born in England there were and possible find her that way.
Do you have the Canadian passenger list that Maud was on? I'm asking as I noticed in your first post you say she arrived with her parents (plural) however the passenger list indicates that her father wasn't with the family and that they were going to join him. Maud and family arrived on 16 Apr 1910 aboard the Canada. Here's a link to a passenger list at Library and Archives Canada:
http://data2.collectionscanada.gc.ca/e/e148/e003684597.jpgHere's the passenger list for James Varney who arrived in Quebec on 2 Jul 1909 aboard the Virginian:
http://data2.collectionscanada.gc.ca/e/e143/e003557848.jpgIt indicates that he was going to join his son-in-law in Toronto which fits in with the 1907 marriage of Ellen.
Here's a link to the 1911 census at Library and Archives Canada for Herbert and Ellen (Varney) Martin and their two children (family starts at line 34):
http://data2.collectionscanada.ca/1911/pdf/e002028988.pdfI found a passenger list entry for a Miss ? Varney who arrived on 29 Mar 1906 aboard the Virginian. The initial is difficult to read although it was transcribed as an "N" I think it could still be Ellen. It was the only female Varney who I could find who arrived in 1906 (which is the year of immigration she lists on the 1911 census) and she was going to Toronto. She is on the same ticket as a Wheeler family. Here's a link to the passenger list:
http://data2.collectionscanada.gc.ca/e/e148/e003697837.jpgJacquie