Hi Megan,
Mary and her son, Robert, came from Dunnaluck, not Derrylusk:
1901 Census:
Residents of a house 2 in Dunnaluck (Drum, Monaghan)
Surname Forename Age Sex Relation to head Religion Birthplace Occupation Literacy Irish Language Marital Status Specified Illnesses
Mackay Robert 55 Male Head of Family Presbyterian Co Monaghan Farmer Read and write - Married -
Mackay Jane 55 Female Wife Presbyterian Co Monaghan - Read and write - Married -
Mackay Mary 90 Female Mother Presbyterian Co Monaghan - Read and write - Widow -
Mc Avinney Patrick 19 Male Servant Roman Catholic Co Monaghan Labourer Agricultural Read and write - Not Married -
And his father was a William not an Edward:
Church Marriage Record
Date of Marriage: 01-Mar-1888
Parish / District: Currin County: Co. Monaghan
Husband Wife
Name: Robert MacKey Jane Stewart
Address: Dunnaluck, Currin Parish Aghareagh, Currin Parish
Denomination: [not Listed] [not Listed]
Occupation: farmer [not listed]
Age: Full Age Full Age
Status: Bachelor Spinster
Husband's Father Wife's Father
Name: William MacKey George Stewart
Address: [not Listed] [not Listed]
Denomination: Not Recorded Not Recorded
Occupation: Deceased farmer farmer
Husband's Mother Wife's Mother
Name: [not Listed] [not Listed] [not Listed] [not Listed]
Address: [not Listed] [not Listed]
Denomination: Not Recorded Not Recorded
Occupation: [not listed] [not listed]
Witness 1 Witness 2
Name: William Lawson Eliza Stewart
Address:
Notes:
Rev. William Armstrong.
This is them in the GV, where William held Plot 10 of just over 9 acres:
Griffith's Valuation Record Information
Tenant
Family Name 1 MACKEY
Forename 1 WILLIAM
Landlord
Family Name 2 QUINN
Forename 2 JOHN C.
Prefix REV
Location
County MONAGHAN
Barony DARTREE
Union COOTEHILL (PART OF)
Parish CURRIN
Townland DUNNALUCK
Place Name DUNNALUCK
Place Type TOWNLAND
Publication Details
Position on Page 37
Printing Date 1858
Act 15&16
Sheet Number 17,22
Map Reference 10 A,B
And Dunnaluck adjoins Drumborisk!!
Regards,
B