[MrE]

Is there a way to get latitude and longitude off the map pins? Using that data could easily give us the average location.

Run this script:
for (i=0;i<gmarkers.length;i++) { console.log(gmarkers[i].myname + ";  " + gmarkers[i].position.A + ";  " + gmarkers[i].position.F); }

Returns this data:
MrE: MrE;  43.6187102;  -116.21460680000001
encantotom: Home in Wittmann;  33.7638142;  -112.55401419999998
Retro: Retro;  55.170035;  -118.75454460000003
RussWhite: Now in Florida;  24.7433195;  -81.25188330000003
GuardraiNeb.: Location;  41.198438;  -96.03675199999998
kenstruks: My location;  36.246332;  -93.93204100000003
nuevomex: Gary and Susie;  24.5550593;  -81.77998709999997
Flick: Todd Flickema;  43.5499749;  -96.70032700000002
HoosierDaddy: My location;  41.395326;  -85.54831639999998
nuevomex: Gary and Susie;  36.4011825;  -93.73797109999998
77newell: 77newell's location;  42.499198;  -83.17117999999999
Express1: Driving routes;  38.4783198;  -107.8761738
Express1: location;  38.0227716;  -107.67144869999998
ccjohnson: C.C. Johnson;  32.2686981;  -107.75864039999999
encantotom: in Fort Dodge Iowa;  42.4974694;  -94.16801579999998
encantotom: in Osceloa Iowa;  41.0342618;  -93.76675899999998
Brad Townsend: Summer Location;  44.4176926;  -71.13540280000001
2dogs: prescott,az;  34.5400242;  -112.4685025
mark cecot: my location;  41.6005448;  -93.60910639999997
hagcam: Peter Haggins;  49.6841391;  -124.99044930000002
ashley: ashley;  30.3118769;  -95.45605119999999
encantotom: Home - Wittmann, AZ;  33.7637699;  -112.55336460000001
folivier: Winter Quarters;  29.9902013;  -91.0551001
encantotom: Caesarea, Israel;  32.519016;  34.90454399999999
John L Williams: Getting Started;  32.3178904;  -86.07334980000002
kb0zke: kb0zke;  37.8422577;  -93.16685919999998
whatsnewell: South Lake Tahoe,  CA;  38.939926;  -119.97718680000003
Dean Patterson (texas2dean): Longview Tx;  32.5007037;  -94.74048909999999
smagown: Pin me;  32.5184775;  -92.14763529999999
Gordon: NEW PIN;  40.3857087;  -122.28083559999999
prairieschooner: home;  33.9424658;  -117.22967169999998
bestgenman: JET Electric;  39.5858953;  -83.12046470000001
charlesb: Las Vegas, NV;  36.114646;  -115.17281600000001
ccopel: location on map;  27.8005828;  -97.39638100000002
djimellis: Location;  51.1909883;  -114.46786029999998
Brad Townsend: Senator Wash for the Winter;  32.9033755;  -114.46550360000003
Pat Parsons: Pay &amp; Larrys Place;  40.4578119;  -92.17129239999997
Bill and Sonja: cold layover;  51.05;  -113.82249999999999
Brad Townsend: Winter Location;  32.6926512;  -114.62769159999999
2dogs: 2dogs,yuma;  32.6926512;  -114.62769159999999
Fulltiming: In Austin;  30.267153;  -97.74306079999997
Chester Stone: Chester Stone's home;  27.9638689;  -111.04360209999999
Scott: Ohio;  33.739702;  -112.64370259999998