TMs:
TM01 Dynamicpunch: Given to you in Cianwood City's Gym
TM02 Headbutt: Ilex Forest, Goldenrod's department store for $2000
TM03 Curse: Celadon Mansion (Go in the night)
TM04 Rollout: Route 35
TM05 Roar: Route 32
TM06 Toxic: Fuschia Gym
TM07 Zap Cannon: Clear the power plant activity
TM08 Rock Smash: Someone on the right of Sudowoodo, or buy it at Goldenrod city
TM09 Psych Up: Traded Abras/Kadabras
TM10 Hidden Power: Celadon shop for $3000
TM11 Sunny Day: Celadon shop for $2000
TM12 Sweet Scent: Near the exit of Ilex Forest
TM13 Snore: Feed the sick Miltank
TM14 Blizzard: Goldenrod game corner for 5500 coins
TM15 Hyper Beam: Celadon game corner for 7500 coins
TM16 Icy wind: Mahogany Gym
TM17 Protect: Celadon shop for $3000
TM18 Rain Dance: Slowpoke Well
TM19 Giga drain: Celadon Gym
TM20 Endure: Burnt Tower
TM21 Frustration: Goldenrod City Dept Store - 5th Floor - Sundays - Lead Pokémon dislikes you
TM22 Solar beam: Route 27
TM23 Iron tail: Olivine Gym
TM24 Dragonbreath: Clair gives it to you after getting the badge.
TM25 Thunder: Goldenrod game corner for 5500 coins
TM26 Earthquake: Victory Road
TM27 Return: Goldenrod City Dept Store - 5th Floor - Sundays - Lead Pokémon likes you
TM28 Dig: Outside of the National Park
TM29 Psychic: Saffron City - Mr. Psychic's House, Celadon Game Corner for 3500 coins.
TM30 Shadowball: Ecruteak Gym
TM31 Mud-slap: Violet Gym
TM32 Double Team: Celadon game corner for 1500 coins
TM33 Ice punch: Goldenrod shop for $3000
TM34 Swagger: Lighthouse
TM35 Sleeptalk: Goldenrod shop basement
TM36 SludgeBomb: Route 43
TM37 Sandstorm: Tohjo Falls - House outside the exit, Celadon PokeMart
TM38 Fire blast: Goldenrod game corner for 5500 coins
TM39 Swift: Union Cave
TM40 Harden: Mt. Mortar
TM41 Thunderpunch: Goldenrod shop for $3000
TM42 Dream eater: Viridian city a boy gives it to you
TM43 Detect: Lake of Rage
TM44 Rest: Ice Cave
TM45 Attract: Goldenrod Gym
TM46 Thief: Mahogany's basement of the Team Rocket complex
TM47 Iron Wing: Route 28 - In the house behind the 2 bushes, Rock Tunnel
TM48 Fire punch: Goldenrod city shop for $3000
TM49 Fury Cutter: Azalea Gym
TM50 Nightmare: Take the Spearow from the Goldenrod North Gate Guy to the guy on Route 31
HMs if you want them:
HM01 Cut: Ilex Forest - Chase the bird and talk to the guy.
HM02 Fly: The woman outside Cianwood City Gym
HM03 Surf: Defeat the 5 Eevee trainers in Ecruteak City and talk to the father
HM04 Strength: House next to the PokéCenter in Olivine City
HM05 Flash: Defeat the Monk of Bellsprout Tower
HM06 Whirlpool: Help Lance defeat Team Rocket in Mahogany Town
HM07 Waterfall: Inside the Ice Cave
Source: here.
