James Austin (1884-1944) was a son of James & (?) Mrs Austin of Glasgow (may have emigrated to NZ, research continuing)
Johanna Callaghan was born in Taranaki, to John Callaghan (1839-1913), from County Cork & Mary Ann Enright (1853-1922) from County Kerry, who married at St Mary of the Angels, Wellington 19 Feb 1876.
thanks to ScotNZ for correction 12-8-2018
Her siblings were..
1877 - 1950 Johanna Callaghan
1878 - John Callaghan
1882 - 1962 Cornelius Callaghan
1883 - Elizabeth Callaghan
1886 - 1944 Patrick Callaghan
1888 - Mary Callaghan
1891 - 1906 Catherine 'Kate' Callaghan
1893 - Dorothy Therese 'Doris' Callaghan

JAMES & JOHANNA married
Stratford Evening Post, 9 Sep 1912
WEDDING BELLS - CALLAGHAN-AUSTIN
A quiet but pretty wedding took place at the Roman Catholic Church, Stratford, on Wednesday last, 4th, when Miss Johanna Callaghan, eldest daughter of Mr and Mrs John Callaghan, of Finnerty Road, Ngaere and late postmistress of Ngaere, was married to Mr James Austin, eldest son of the late Mr James Austin and Mrs Austin, of Glasgow, Scotland.

The Rev Father Tracey performed the ceremony. The bride, who was given away by her brother, Mr C.(Cornelius) Callaghan, was attired in a pretty dress of silver-grey ciolienne, made with pointed tunic and trimmed with silver-grey Oriental trimming, transport yoke of lace outlined with shaded rucheel ribbon to match. She wore a black velvet hat, with grey wings and carried a shower bouquet of white jonquils, white narcissus and asparagus fern.

The bride was attended, as bridesmaid, by her youngest sister, Miss Doris Callaghan, who wore a creme radianta with Peter Pan lace collar and cuffs, black chip hat, with white plumes and touch of cerise; she also carried a posy bouquet of white flowers and maiden hair foliage and wore a gold bangle, the gift of the bridegroom. Mr P. O'Reilly acted as best man. The bridegroom's gift to the bride was a set of silver-backed brushes, comb and hand mirror, in case. The bride's gift to the bridegroom was gold double Albert chain.

The wedding presents were numerous and costly, showing the esteem in which the bride was held and included a handsome case of solid silver afternoon tea spoons and sugar tongs from the guards of the Hawera-New Plymouth section of the railway department.

In the evening Mr and Mrs James Austin left by motor for their future home at Opee road, Opunake.
The bride's going-away dress was a navy blue tailored costume, creme silk voile blouse, trimmed with rich silk insertion, brown tuscan hat with brown ribbon

the children of JAMES & JOHANNA
.. 1 1914 - 1984 Margaret Mary 'Peggy' Austin
* Peggy married Mr ? Guise. She is buried at Mangare, Auckland
.. 2 1915 - 1920 Alison Elizabeth Austin 'Betty'
* Betty died aged 5 & buried with her parents
Taranaki Daily News, 25 Oct 1920
DEATH AUSTIN - On Sunday, Oct 24, 1920, Alison Elizabeth (Betty), second daughter of Mr and Mrs Jas. Austin, late of Opua Road, Opunake; aged 5½ years.
The funeral will leave St Joseph's Church, to-morrow (Tuesday Oct 20) at 2.30pm for the Te Henui cemetery
.. 3 1916 - 2005 James Jeffrey 'Jim' Austin
* Jim became a Catholic priest
TRIBUTE 28 Jan 2005
AUSTIN, Reverend Father James Jeffrey 'Jim' 16 Sep 1916 - 28 Jan 2005, Retired Priest of the Wellington Archdiocese - Peacefully at the Vincentian Home, Berhampore. Dearly loved son of the late James and Johanna Austin (New Plymouth); loved brother of the late Peggy Guise, Betty Austin and Joan Bignall; loved Uncle of Austin and Moray Guise, Jeff and Bev Bignall, Kevin and Irene Bignall, Catherine and Graeme Wall and all their families. In lieu of flowers donations to the Cancer Society 52 Riddiford Street Newtown would be appreciated. Requiem Mass will be celebrated at the Cathedral of the Sacred Heart, Hill Street Thorndon on Thursday February 3rd 2005 at 11:00am thereafter to the Taita Cemetery. The Rosary will be recited in Church on Wednesday evening at 7:00pm
.. 4 1919 - 1992 Joan Patricia Austin
* Joan married Leonard Bignall & is buried at Taita

James Austin died 7 Dec 1944 aged 60 in New Plymouth
Johanna Austin died 30 Sep 1950 aged 73 in New Plymouth
They are buried Roman Catholic Block, Row 11, Lot 8, Plot 1 at Te Henui with daughter Betty

PHOTO
the Immaculate Conception Church 1913
The Roman Catholic Church, Miranda St, Stratford, as it looked during the wedding of James & Johanna's. Larger photo can be seen at the link