Hello cng,
Welcome to the forum 
Try this formula then
=SUMIFS('GC-2016-06-17'!$J$2:$J$361,'GC-2016-06-17'!$G$2:$G$361,">="&INDIRECT("'Money Tracker 2016-06-20'!"&ADDRESS(1,17+ABS(17-COLUMN()),4)),'GC-2016-06-17'!$G$2:$G$361,"<="&INDIRECT("'Money Tracker 2016-06-20'!"&ADDRESS(1,17+ABS(17-COLUMN()),4)))
Post it in Column Q, if you drag it left or right from Q, Q1 and Q2 will only go forward to the right to R1 R2, S1 S2, etc.
All I did was replacing 'Money Tracker 2016-06-20'!Q$1 with INDIRECT("'Money Tracker 2016-06-20'!"&ADDRESS(1,17+ABS(17-COLUMN()),4)) (Similar for Q2)
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