It is easier to help if you include their ages given in New Zealand certificates.

Maughold parish register has this marriage:
9 Oct 1873
Evan LOONEY, Full age, Bachelor, Farmer, [residence] Magher y Kew, [father] Joseph Looney, Farmer, and
Margaret Ann QUAYLE, Full age, Spinster, [residence] Ballaterson, [father] John Quayle, Farmer.

Probably Margaret Ann bapt.28 May 1849 Maughold, daur of John Quayle & Isabella [SAYLE]

1861 census Maughold:
1 109 Quayles House on Church Rd to Ramsey John QUAYLE Head MAR 66 Farmer of 20 acres [born] Maughold
1 109 Quayles House on Church Rd to Ramsey Isabella QUAYLE Wife MAR 44 Maughold
1 109 Quayles House on Church Rd to Ramsey Catherine GARRETT Daughter MAR 22 Maughold
1 109 Quayles House on Church Rd to Ramsey John QUAYLE Son UNM 21 Assistant Maughold
1 109 Quayles House on Church Rd to Ramsey Isabella QUAYLE Daughter UNM 19 Maughold
1 109 Quayles House on Church Rd to Ramsey Thomas QUAYLE Son UNM 16 Maughold
1 109 Quayles House on Church Rd to Ramsey James QUAYLE Son UNM 11 Maughold
1 109 Quayles House on Church Rd to Ramsey Margaret QUAYLE Daughter UNM 12 Maughold
1 109 Quayles House on Church Rd to Ramsey Edward QUAYLE Son UNM 10 Maughold
1 109 Quayles House on Church Rd to Ramsey Henry QUAYLE Son UNM 8 Maughold
1 109 Quayles House on Church Rd to Ramsey William GARRETT Son in Law MAR 21 Bride
1 109 Quayles House on Church Rd to Ramsey infant GARRETT Granddaughter UNM 0 Bride not yet baptised.

1841 census Maughold:
1 4 14 East Ballaterson John QUAYLE 45 Farmer [born] Isle of Man
1 4 14 East Ballaterson Isabella QUAYLE 24 Isle of Man
1 4 14 East Ballaterson Jane QUAYLE 7 Isle of Man
1 4 14 East Ballaterson Cathrine QUAYLE 2 Isle of Man
1 4 14 East Ballaterson John QUAYLE 2mo Isle of Man.

John Quayle & Isabella Sayle married 15 Oct 1837 Maughold. Isabella had her mother's consent. [Meaning she was under the age of 21.]
Isabella Anne daur of John Sayle & Margaret Garrett bapt Maughold 22 Dec 1816.
John son of Thomas Quayle & Cath Kirmeen bapt Maughold 7 Jun 1795.

1861 census Maughold:
3 21 Marghakew Joseph LOONEY Head MAR 70 Farming 150 acres. Employing 2 labs Isle of Man
3 21 Marghakew Isabella LOONEY Wife MAR 50 Isle of Man
3 21 Marghakew John LOONEY Son 19 Assistant Isle of Man
3 21 Marghakew Mary LOONEY Daughter 16 Isle of Man
3 21 Marghakew Evan LOONEY Son 16 Maughold
3 21 Marghakew Robert LOONEY Son 10 Maughold
3 21 Marghakew Jane LOONEY Daughter 7 Maughold
3 21 Marghakew Ann CORKILL Servant 27 Servant Maughold
3 21 Marghakew David KINRADE Servant 10 Servant Maughold
3 21 Marghakew William CHRISTIAN Servant 18 Servant Maughold.

Sue