The Blairgowrie duo will be donning the dark blue in the same side for the first time after both recorded recent notable successes.
Fifteen-year-old Connor won the R&A Junior Open by five shots at Monifieth while big brother Gregor landed the Dutch Junior Open by three strokes.
They will be joined in the four-cornered event at Ballyliffin on 3-5 August by another talented teenger in Nairn’s Calum Scott, who helped Great Britain & Ireland win the St Andrews Trophy in Finland last week.
The side also includes Auchterarder’s Rory Franssen, who reached the final of the South African Amateur earlier in the year, and experienced Home Internationals campaigner Matt Clark (Meldrum House).
Completing the line up are Andrew Davidson (Crail Golfing Society), Lewis Irvine (Kirkhill), Callum Bruce (Duff House Royal) and Angus Carrick (Craigielaw),
Taking place at the same venue at the same time, the Scottish side for the ladies’ event includes North Berwick teenager Grace Crawford.
Swiss-based Scottish champion Cameron Nielson (Bad Alvaneu) joins her along with Lorna McClymont (Milngavie), Chloe Goadby (St Regulus Ladies), Jen Saxton (Dunfermline), Carmen Griffiths (Aboyne) and Megan Ashley (Blairgowrie).
Two brothers - Gullane’s Oliver and Sam Mukherjee - have also been picked for the boys’ event which takes place at Downfield.
California-based Niall Shiels Donegan (Mill Valley) is in that team along with Fraser Laird (Kemnay), Harry Bent (Gullane), Callum Kenneally (Dunbar), Daniel Bullen (Auchterarder), Cormac Sharp (Blairgowrie) and Ross Laird (Glenbervie).
Also taking place at the Dundee venue, national champion Freya Constable (Prestonfield) heads the team for the girls’ event, joining Freya Russell (Royal Troon), Summer Elliott (Maverston), Ruby Watt (Paul Lawrie Golf Centre), Robyn Fowlie (Murcar Links), Jade Potter (Northampton) and Ailsa Brannock (Southerness).
Meanwhile, the Graham brothers are both on action in this week’ Scottish Amateur Championship, which starts on Tuesday at two top venues on the Ayrshire coast - Western Gailes and Glasgow Gailes.
Carrick is the defending champion after his title triumph at Murcar Links, where Connor Graham, just 14 at the time, created history as the event’s youngest semi-finalist.
The top 64 afrer two stroke-play qualifying rounds - one on each course – advance to the match-play stage at Glasgow Gailes.