Not sure about English, but Irish sausages are widely available, at least on the northwest and southwest sides, and are similar.
1) Winston's Sausage (4701 W 63rd St, Chicago; 7961 West 159th Street in Tinley Park). You can also purchase Winston's products at Gaelic Imports, on Austin, just south of Lawrence, in Chicago. In addition to the Irish sausages, Winston's now makes a Scottish sausage w/beef, rather than pork.
2) Happy Foods (6783 N Northwest Hwy, Chicago; 6415 N Central Ave, Chicago), sells Diamond's Brand Irish sausages.
3) Jack and Pats, (10717 Ridgeland Ave, Chicago Ridge, IL 60415). I think they make their own brand.
4) O'Connor's Market (7280 West Devon, Chicago). I think they also make their own.
I'd also suspect that some grocery stores in Forest Park migh carry Irish sausage.