Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
List of Teen Titans members
Table title:
Original Team (1960s–1970s)
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Character </th><th colspan=1 rowspan=1 > Identity </th><th colspan=1 rowspan=1 > Issue joined </th><th colspan=1 rowspan=1 > Notes </th></tr>
<tr> <td colspan=1 rowspan=1 > Robin / Nightwing </td><td colspan=1 rowspan=1 > Dick Grayson </td><td colspan=1 rowspan=3 > The Brave and the Bold #54 (July 1964) </td><td colspan=1 rowspan=1 > Founding member. Leader of the Titans. </td></tr>
<tr> <td colspan=1 rowspan=1 > Kid Flash / Flash </td><td colspan=1 rowspan=1 > Wally West </td><td colspan=1 rowspan=1 > Founding member. Former member of the Justice League of America, the Justice League Elite, and Justice League Europe as the Flash. </td></tr>
<tr> <td colspan=1 rowspan=1 > Aqualad / Tempest </td><td colspan=1 rowspan=1 > Garth </td><td colspan=1 rowspan=1 > Founding member. Died in Blackest Night #2. Disappeared after New 52 relaunch but reappeared in DC Rebirth. </td></tr>
<tr> <td colspan=1 rowspan=1 > Wonder Girl / Troia </td><td colspan=1 rowspan=1 > Donna Troy </td><td colspan=1 rowspan=1 > The Brave and the Bold #60 (June/July 1965) </td><td colspan=1 rowspan=1 > Founding member. Former member of the Darkstars as Donna Troy. </td></tr>
<tr> <td colspan=1 rowspan=1 > Speedy / Arsenal </td><td colspan=1 rowspan=1 > Roy Harper </td><td colspan=1 rowspan=1 > Teen Titans #19 (January/February 1968) </td><td colspan=1 rowspan=1 > Founding member (retcon introduced in Teen Titans #53 (February 1978)). Former member of the Outsiders and Checkmate as Arsenal. </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Lilith / Omen </td><td colspan=1 rowspan=1 > Lilith Clay </td><td class="highlighted"  colspan=1 rowspan=3 > Teen Titans #25 (January/February 1970) </td><td colspan=1 rowspan=1 > Leader of Titans West. Died in Titans/Young Justice: Graduation Day #3. Reestablished in Titans Hunt (second series) #1. </td></tr>
<tr> <td colspan=1 rowspan=1 > Hawk </td><td colspan=1 rowspan=1 > Hank Hall </td><td colspan=1 rowspan=1 > Also a member of Titans West. Became the villains known as Monarch and later Extant. </td></tr>
<tr> <td colspan=1 rowspan=1 > Dove </td><td colspan=1 rowspan=1 > Don Hall </td><td colspan=1 rowspan=1 > Also a member of Titans West. Died in Crisis on Infinite Earths #12. </td></tr>
<tr> <td colspan=1 rowspan=1 > Guardian / Herald </td><td colspan=1 rowspan=1 > Malcolm Duncan </td><td colspan=1 rowspan=1 > Teen Titans #26 (March/April 1970) </td><td colspan=1 rowspan=1 > Also a member of Titans L.A. Member of the Doom Patrol as Vox. </td></tr>
<tr> <td colspan=1 rowspan=1 > Aquagirl </td><td colspan=1 rowspan=1 > Tula </td><td colspan=1 rowspan=1 > Teen Titans #30 (November/December 1970) </td><td colspan=1 rowspan=1 > Honorary member. Many of her adventures with the Titans are uncatalogued. Died in Crisis on Infinite Earths #10. </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Gnarrk </td><td colspan=1 rowspan=1 > John Gnaark </td><td class="highlighted"  colspan=1 rowspan=1 > Teen Titans #33 (May/June 1971) </td><td colspan=1 rowspan=1 > Also a member of Titans West. Reported dead. </td></tr>
<tr> <td colspan=1 rowspan=1 > Joker's Daughter / Harlequin </td><td colspan=1 rowspan=1 > Duela Dent </td><td colspan=1 rowspan=1 > Teen Titans #46 (February 1977) </td><td colspan=1 rowspan=1 > Former member of Titans East as the Joker's Daughter. Killed by a Monitor in Countdown #51. </td></tr>
<tr> <td colspan=1 rowspan=1 > Bumblebee </td><td colspan=1 rowspan=1 > Karen Beecher-Duncan </td><td colspan=1 rowspan=1 > Teen Titans #48 (June 1977) </td><td colspan=1 rowspan=1 > Also a member of Titans L.A. Member of the Doom Patrol. </td></tr>
</table>
Question:
Who joined Teen Titans West in 1970?
Answer:
Gnarrk and Lilith joined Teen Titans West.