My procedure is to sort Mirko Jalava's 2008 World Deep Lists <tilastopaja.org> for each event by year of birth, starting with 1973 and backward from there, to identify all athletes on the list of masters age levels (35 and older on the date of competition). In summarizing the lists, I've bold-faced the data for the oldest on the list, and also have noted the youngest athlete on the world list in each event.
Masters on Men’s Hammer Throw World List for 2008 N=453 List threshold=60.03 25 78.79 Nicola Vizzoni ITA 4 Jan 73 Lucca 10 Jun 29 78.55 Sergey Kirmasov RUS 25 Mar 70 Zhukovskiy 15 Jun 32 77.72 Christophe Épalle FRA 23 Jan 69 Aubière 9 Jul 50 75.76 Pavel Sedlácek CZE 5 Apr 68 Ostrava 31 May 55 75.08 Kevin McMahon USA 26 May 72 Modesto CA 10 May 57 74.89 Karsten Kobs GER 16 Sep 71 Dortmund 8 Mar 67 73.60 Giovanni Sanguin ITA 14 May 69 Brescia 28 May 70 73.44 Dzmitry Marshyn BLR 24 Feb 72 Stayki 27 Jul 74 73.10 Paddy McGrath USA 1 Jul 71 West Point NY 20 Jun 147 68.04 Aleksandr Dryhol UKR 25 Apr 66 Kyiv 2 Jul 156 67.67 Zsolt Németh HUN 9 Nov 71 Tapolca 2 Aug 171 66.76 Mick Jones GBR 23 Jul 63 Crawley s10 May 178 66.51 Pavlo Milinevskyy AUS 3 Mar 68 Melbourne 10 Feb 249 64.12 Taisto Vierimaa FIN 27 Jul 65 Kaustinen 17 May 258 63.93 Adrián Marzo ARG 24 Jan 68 Buenos Aires 10 May 283 63.36 Marco Quintarelli ITA 20 Jun 73 Firenze 28 Jun 310 62.88 Leri Chitaisvili GEO 18 Dec 72 Tel Aviv 2 Jul 350 61.88 Bernard Reibel FRA 13 Aug 67 Montpellier 18 May 372 61.54 Mariusz Walczak POL 27 Feb 71 Szczecin 6 Jul 382 61.40 Roland Ciofani FRA 29 Sep 71 Maisons-Laffitte 17 May 407 60.81 Mário Luiz Leme BRA 19 Nov 65 São Paulo 26 Jun 416 60.64 Samir Haouam ALG 20 Jun 68 Alger 29 May 434 60.37 Phil Jensen NZL 8 Nov 67 Auckland 30 Mar 440 60.28 Pat Hellier NZL 24 Jun 71 Auckland 30 Mar Youngest athlete (16) on this list: 278 63.45 Ákos Hudi HUN 10 Aug 91 Debrecen 19 Jul ----- Masters on Women’s Hammer Throw World List for 2008 N=536 List threshold=52.01 29 70.74NR Sviatlana Sudak TUR 20 Mar 71 Stayki 27 Jul 67 67.70 Olga Kuzenkova RUS 4 Oct 70 Kazan 19 Jul 267 57.78 Dolores Pedrares ESP 17 Jan 73 Santa Cruz Tenerife 27 Jul 461 53.38 Anna Söderberg SWE 11 Jun 73 Göteborg 17 Sep Youngest athlete (15) on this list: 452 53.49 Alena Navahrodskaya BLR 93 Stayki 7 Jun