People Poser

The man who lives in Yorkshire bought a car in January (clue 1) and didn't marry Gillian (clue 5), Patricia (6), Margaret (7), Katie (10) or Sandra (11), so Teresa. The man (2) who married in February also bought a car in February. He bought a house two months after Christopher (2) and the month after the man who lives in Yorkshire (1). No-one bought a house in April. The man who bought a house in March also married in March (6). So Christopher bought a house in May, the man who lives in Yorkshire bought a house in June and whoever married in February bought a house in July. The man who bought a car in February didn't marry Patricia (6), Margaret (7), Katie (10) or Sandra (11), so Gillian. Eric (5) lives in Yorkshire. Patricia's husband didn't buy a house in March (6), so (3) in February and the man who lives in Kent bought a house in January. The man who lives in Norfolk didn't marry in June (9), so (4) in either March or May and the one who married Sandra did so in either January or March - thus one of them married in March. Thus (11) the man who lives in Norfolk is married to Patricia and Sandra's husband bought a house in March. The man in Norfolk (4) married in May. Katie's husband (10) bought a house in May and the man who lives in Yorkshire married in January. The man who lives in Kent married Margaret. The man who lives in Norfolk bought a car later than the one who lives in Kent (3) who thus didn't marry in June (9), so in April and the man who married Katie was married in June. The man who bought a car in August didn't marry Margaret (3), Sandra (6) or Patricia (9), so Katie. The man who lives in Norfolk bought a car later than the one who married Sandra (6). David didn't marry Gillian (1), so (11) he married Margaret and bought a car in April; and the man who married Sandra bought a car in May; so the man in Norfolk bought a car in June. Steve (7) married Gillian. Andrew (4) married Patricia. George married Sandra (8) and lives in Lancashire. The man in Dorset isn't Katie's husband (9), so Gillian's. Thus the man in Lincolnshire married Katie.
Thus: