The sanitorium was probably a TB hospital/retreat. You may find out lots about it by looking at old newspapers:
http://paperspast.natlib.govt.nz/http://bdmhistoricalrecords.identityservices.govt.nz/(this site can be searched for exact dates by process of elimination ie. try 01/01/1883 to 30/06/1883 and keep narrowing the search by half... etc...
marriage
1904/4016 Mary Helen
McKinley William Clingin
1920/10511 Mary Helen Clingin Alfred Louis
Grovesbirths
1883/4744
McKinlay Mary Helen, Elizabeth, Robert
born 11 January 1883
deaths
1918/15598 Clingin William 45Y
burial
Source NZSG Cemetery Fiche
Surname CLINGIN
Given Names William
Year of Death 1918
Record Number n/r
Record Type B/R
Age n/r
Location Invercargill Cremations & Burials T01.40
There are other Clingin burials in the same cemetery for 1956 & 1979.
Glenorchy burials:
Source NZSG Cemetery Fiche
Surname CLINGIN
Given Names John W J
Year of Death 1936
Record Number 11
Record Type B/R
Age 34
Location Glenorchy: 1863-1980: S.05.05
and this same person???:
Source NZSG Cemetery Fiche
Surname CLINGIN
Given Names John William
Year of Death 1936
Record Number 49
Record Type M/I
Age 35
Location Glenorchy Cemetery Central Otago S05.05
Source NZSG Cemetery Fiche
Surname MACKINLAY
Given Names Essie
ArundelYear of Death 1902
Record Number 37
Record Type B/R
Age 17
Location Glenorchy: 1863-1980: S.05.05
Source NZSG Cemetery Fiche
Surname MACKINLAY
Given Names Walter
Year of Death 1907
Record Number 38
Record Type B/R
Age 16
Location Glenorchy: 1863-1980: S.05.05
The last two burials you should be able to refine and find on the historical website for BDM, as above. The parents Elizabeth and Robert you may also find details on the BDM site.
two entries for Mary, one burial and one for M/I (monument)
Source NZSG Cemetery Fiche
Surname GROVES
Given Names Mary Helen
Year of Death 1968
Record Number 24
Record Type B/R
Age 86
Location Glenorchy: 1863-1980: S.05.05
Source NZSG Cemetery Fiche
Surname GROVES
Given Names Mary Helen
Year of Death 1968
Record Number 52
Record Type M/I
Age 86
Location Glenorchy Cemetery Central Otago S05.05
one for her husband:
Source NZSG Cemetery Fiche
Surname GROVES
Given Names Alfred Lewis
Year of Death 1965
Record Number 52
Record Type M/I
Age 85
Location Glenorchy Cemetery Central Otago S05.05
also in same cemetery
Source NZSG Cemetery Fiche
Surname GROVES
Given Names Huntly
Year of Death 1975
Record Number 53
Record Type M/I
Age 61
Location Glenorchy Cemetery Central Otago S05.05
because the last three are M/I's you will have to check the burials records found at major NZ libraries to see if they are buried here as well.
http://www.aucklandmuseum.com/130/cenotaph-database/no records for William Clingin WWI
http://www.archway.archives.govt.nz/No records for Mary or William
1893 Electoral roll: four records under Mary
McKinlay, three which may be relevant. All 3 living in or near Dunedin. (one is listed for Port
Chalmers and an Elizabeth is listed for P.C as well)
No records on roll for a William Clingin or his surname only.
There is a school record:
School
Records (APWs)
Name
CLINGIN William
School
Caversham
Register Number
0668
Former Reg. No
Admission
Date16 Jul 1883
Parent / Guardian
Address
Caversham
Birthdate
30 Jun 1875
Last School
Last Day
20 Feb 1884
Destination
Comment
HKN 26/82/J/0668 :
Further enquiries to
Dunedin Branch - NZSG
which could be your William although the death age does not line up exactly.
There are also school records for Essie and Walter if you would like them.
There is a marriage cert at the NZSG
NZSG Certificates Collection which could be your Mary (if you narrow down on the BDM site and discover they are the same date you will know she married at Arrowtown.
Name
McKINLAY Mary
Date
14 Feb 1904
Event
Place
Arrowtown OTG NZ
Reference
CTF21734-002
Further enquiries to
NZSG Certificates Collection
There are records of Elizabeth and Robert
McKinlay in the NZ First Families Collection.They could be Mary's parents. if I get time in the next couple of days I will look them up for you.
The probate/will for Alfred is held at Dunedin archives:
Name
GROVES Alfred Lewis
Place
Glenorchy
Occupation
Retired
FarmerDeath
DateCourt
Invercargill
Archives Reference
DAFG 9069 D328 208/65
Probate Number
208/65
Filed
Date6 May 1965
Type
Will
Comments
Further enquiries to
Archives NZ - Dunedin
Hope this helps for a starter.
Amanda