Searching for data in another sheet - Google Sheets

[TAPS_MikeDion]

Hi everyone,
Hopefully there is enough info here. I've been trying to figure out 3 formulas to locate data in another sheet, but I wasn't able to figure out formulas using either VLOOKUP or HLOOKUP to do what I need. I may not be trying the correct formulas either.

Sheet with the search formulas (Main Data)
Sheet with data to be searched (Meeting Attendance)

In the Main Data sheet there are 3 columns:
C = ID Number
J = Monthly Meetings Attended
K = Monthly Meetings Missed
L = Last Meeting Attended

In the Meeting Attendance sheet I have the following columns:
C = ID Number
G - R = Months of the year (Jan - Dec)
The rows below the months of the year contain checkboxes, which get checked when a person has attended that months meeting.

Columns G through R - An X entered in row 2 above any given month indicates that that monthly meeting has been held
Columns G through R have the month names in row 3. Jan, Feb, Mar, etc

What I'm trying to do from the Main Data sheet is search through the Meeting Attendance sheet for the matching ID Number (column C in both sheets) and then pull the values into columns J, K and L data in the Main Data sheet.

Any help is GREATLY appreciated!

Thanks,
Mike