The information below was compiled with the help of Paul Searl of Illinois, USA, who maintains a comprehensive Rock Island Plow Co. website.

The symbol next to an entry means that there are one or more photos of this tractor in the corresponding Photo Gallery - click on the symbol and you will be taken to these.

Model	Serial No.	Year	Owner/Location
Heider A	n/a	n/a	Iowa, USA
Heider B	B237	n/a	Reynolds-Alberta Museum, Canada
Heider B	n/a	n/a	Iowa, USA?
Heider B	n/a	n/a	New York, USA
Heider C	2258	n/a	England
Heider C	3005	n/a	Schwanke Museum, Willmar, Minnesota, USA
Heider C	3176	n/a	USA
Heider C	4546	n/a	Indiana, USA
Heider C	5175	1918	Illinois, USA
Heider C	8577	n/a	n/a
Heider C	8622	n/a	Minnesota, USA?
Heider C	8660	n/a	Minnesota, USA?
Heider C	8668	n/a	Netherlands
Heider C	8829	n/a	Western Development Museum, N. Battleford, Canada
Heider C	8966	n/a	Stuhr Museum, Nebraska, USA
Heider C	n/a	n/a	England
Heider C	n/a	n/a	Scotland
Heider C	n/a	n/a	Jim Hosey, Ireland
Heider C	n/a	n/a	Geldof Museum, Harelbeke, Belgium
Heider C	n/a	n/a	ITAS 'G. Garibaldi', Rome, Italy
Heider C	n/a	n/a	Museo della Civilta Contadino, Italy
Heider C	n/a	n/a	Bright's Pioneer Exhibit, Le Grand, California, USA
Heider C	n/a	n/a	West Kern Oil Museum, Taft, California, USA
Heider C	n/a	n/a	Minnesota, USA?
Heider C	n/a	n/a	Minnesota, USA?
Heider C	n/a	1918	Pennsylvania, USA
Heider C	n/a	n/a	Western Development Museum, Saskatoon, Canada
Heider D	12109	1919	Illinois, USA
Heider D	n/a	n/a	Heidrick Museum, Woodland, California, USA
Heider D	n/a	n/a	Camp 18 Museum, Oregon, USA
Heider M-1	105093	1920	Illinois, USA
Heider M-1	n/a	n/a	Belgium
Heider M-1	n/a	n/a	Montana, USA
Heider M-2	5032	n/a	Heritage Park of North Iowa, Forest City, Iowa, USA
Heider M-2	5056	n/a	n/a
Heider M-2	5069	n/a	Illinois, USA
Heider M-2	n/a	n/a	Maryland, USA
F 18-35	270187	n/a	Belgium
F 18-35	270341	n/a	Minnesota, USA
F 18-35	270376	n/a	Minnesota, USA
F 18-35	280613	n/a	British Columbia, Canada
F 18-35	282005	n/a	Florida, USA
FA 18-35	290416	n/a	Indiana, USA?
FA 18-35	290580	n/a	USA
FA 18-35	290703	n/a	Indiana, USA
FA 18-35	290815	n/a	Minnesota, USA
FA 18-35	290823	n/a	Minnesota, USA
FA 18-35	291282	n/a	n/a
FA 18-35	292145	n/a	Illinois, USA
F 18-35	n/a	n/a	England
F 18-35	n/a	n/a	England
F 18-35	n/a	n/a	England
F 18-35	n/a	n/a	England
F 18-35	n/a	n/a	Museo Maquinaria Agricola, Rio Grande, Argentina
F 22-45	400007	n/a	USA
G 15-25	80050	n/a	Iowa, USA
G 15-25	80123	n/a	Illinois, USA
G 15-25	80264	n/a	Minnesota, USA
G 15-25	n/a	n/a	Manitoba, Canada
G2 15-25	90091	n/a	Illinois, USA
G2 15-25	90326	n/a	USA
G2 15-25	90350	n/a	Minnesota, USA
G2 15-25	90481	n/a	B.A.O., Sweden
G2 15-25	90560	n/a	n/a
G2 15-25	90684	n/a	USA
G2 15-25	100003	n/a	Indiana, USA
G2 15-25	100026	n/a	Richard Sturdy, Galphay, North Yorkshire, England
G2 15-25	100031	n/a	Belgium
G2 15-25	100049	n/a	Western Development Museum, N. Battleford, Canada
G2 15-25	100070	n/a	Missouri, USA
G2 15-25	100140	n/a	Wisconsin, USA
G2 15-25	100181	1930	Ronald Clingan, Indiana, USA
G2 15-25	100261	n/a	Indiana, USA
G2 15-25	n/a	n/a	Bothwell Lodge State Historic Site, Missouri, USA
G2 15-25	n/a	n/a	Pioneer Village, Minden, Nebraska, USA
G2 15-25	n/a	n/a	Western Development Museum, Canada
H3 15-25	33005	1933	Wisconsin, USA
H3 15-25	33033	1933	Wisconsin, USA
H3 15-25	33035	1933	Wisconsin, USA
H4 15-25	34069	1934	Illinois, USA
H4 15-25	34080	1934	Scotland
H5 15-25	35009	1935	Minnesota, USA
H5 15-25	35034	1935	Illinois, USA