Corrections and clarifications

An obituary of the former Observer editor Donald Trelford (28 January, Journal, p6) said he appointed Geoffrey Lean as the first environment correspondent on a national newspaper; in fact Jeremy Bugler preceded Lean in the role at the Observer from 1971-77, and there were journalists on other papers who held this title too. Also, the first midweek edition of the Observer was published in the spring of 1989, rather than in 1990.

• Other recently amended articles include:

Missing radioactive capsule: WA officials admit it was weeks before anyone realised it was lost

Search stepped up for potentially deadly radioactive capsule lost in Western Australia

‘Like being on a rollercoaster’: the man who caught Sicily’s last mafia boss

US seals crucial military deal with the Philippines close to China flashpoints

Former commando Heston Russell wins first round in defamation battle against ABC over Afghanistan articles

Pioneering NHS trial targets brain tumours before surgery

Why rumours of BBC Radio 2’s demise might be overstated

‘Damaged a generation of viewers, including me’: Joe Cornish on the most terrifying horror for kids

NHS faces ‘alarming’ exodus of doctors and dentists, health chiefs warn

Welby ‘would rather see C of E disestablished than split over same-sex marriage’

Editorial complaints and correction requests can be sent to:
You can also write to: Readers’ editor, Kings Place, 90 York Way, London N1 9GU